diff --git a/packages/commonjs/src/helpers.js b/packages/commonjs/src/helpers.js
index fa13894d0..b358a9d0c 100644
--- a/packages/commonjs/src/helpers.js
+++ b/packages/commonjs/src/helpers.js
@@ -74,7 +74,7 @@ export function commonjsRegister (path, loader) {
 }
 
 export function commonjsRegisterOrShort (path, to) {
-	const resolvedPath = commonjsResolveImpl(path, null, true);
+	var resolvedPath = commonjsResolveImpl(path, null, true);
 	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {
 	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];
 	} else {
@@ -82,24 +82,24 @@ export function commonjsRegisterOrShort (path, to) {
 	}
 }
 
-const DYNAMIC_REQUIRE_LOADERS = Object.create(null);
-const DYNAMIC_REQUIRE_CACHE = Object.create(null);
-const DYNAMIC_REQUIRE_SHORTS = Object.create(null);
-const DEFAULT_PARENT_MODULE = {
+var DYNAMIC_REQUIRE_LOADERS = Object.create(null);
+var DYNAMIC_REQUIRE_CACHE = Object.create(null);
+var DYNAMIC_REQUIRE_SHORTS = Object.create(null);
+var DEFAULT_PARENT_MODULE = {
 	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []
 };
-const CHECKED_EXTENSIONS = ['', '.js', '.json'];
+var CHECKED_EXTENSIONS = ['', '.js', '.json'];
 
 function normalize (path) {
 	path = path.replace(/\\\\/g, '/');
-	const parts = path.split('/');
-	const slashed = parts[0] === '';
-	for (let i = 1; i < parts.length; i++) {
+	var parts = path.split('/');
+	var slashed = parts[0] === '';
+	for (var i = 1; i < parts.length; i++) {
 		if (parts[i] === '.' || parts[i] === '') {
 			parts.splice(i--, 1);
 		}
 	}
-	for (let i = 1; i < parts.length; i++) {
+	for (var i = 1; i < parts.length; i++) {
 		if (parts[i] !== '..') continue;
 		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {
 			parts.splice(--i, 2);
@@ -117,9 +117,9 @@ function normalize (path) {
 function join () {
 	if (arguments.length === 0)
 	  return '.';
-	let joined;
-	for (let i = 0; i < arguments.length; ++i) {
-	  let arg = arguments[i];
+	var joined;
+	for (var i = 0; i < arguments.length; ++i) {
+	  var arg = arguments[i];
 	  if (arg.length > 0) {
 		if (joined === undefined)
 		  joined = arg;
@@ -134,9 +134,9 @@ function join () {
 }
 
 function isPossibleNodeModulesPath (modulePath) {
-	let c0 = modulePath[0];
+	var c0 = modulePath[0];
 	if (c0 === '/' || c0 === '\\\\') return false;
-	let c1 = modulePath[1], c2 = modulePath[2];
+	var c1 = modulePath[1], c2 = modulePath[2];
 	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||
 		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;
 	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))
@@ -148,9 +148,9 @@ function dirname (path) {
   if (path.length === 0)
     return '.';
 
-  let i = path.length - 1;
+  var i = path.length - 1;
   while (i > 0) {
-    const c = path.charCodeAt(i);
+    var c = path.charCodeAt(i);
     if ((c === 47 || c === 92) && i !== path.length - 1)
       break;
     i--;
@@ -166,9 +166,9 @@ function dirname (path) {
 }
 
 export function commonjsResolveImpl (path, originalModuleDir, testCache) {
-	const shouldTryNodeModules = isPossibleNodeModulesPath(path);
+	var shouldTryNodeModules = isPossibleNodeModulesPath(path);
 	path = normalize(path);
-	let relPath;
+	var relPath;
 	if (path[0] === '/') {
 		originalModuleDir = '/';
 	}
@@ -185,8 +185,8 @@ export function commonjsResolveImpl (path, originalModuleDir, testCache) {
 			break; // Travelled too far up, avoid infinite loop
 		}
 
-		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {
-			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];
+		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {
+			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];
 			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {
 				return resolvedPath;
 			}
@@ -198,7 +198,7 @@ export function commonjsResolveImpl (path, originalModuleDir, testCache) {
 			}
 		}
 		if (!shouldTryNodeModules) break;
-		const nextDir = normalize(originalModuleDir + '/..');
+		var nextDir = normalize(originalModuleDir + '/..');
 		if (nextDir === originalModuleDir) break;
 		originalModuleDir = nextDir;
 	}
@@ -206,7 +206,7 @@ export function commonjsResolveImpl (path, originalModuleDir, testCache) {
 }
 
 export function commonjsResolve (path, originalModuleDir) {
-	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);
+	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);
 	if (resolvedPath !== null) {
 		return resolvedPath;
 	}
@@ -214,18 +214,18 @@ export function commonjsResolve (path, originalModuleDir) {
 }
 
 export function commonjsRequire (path, originalModuleDir) {
-	let resolvedPath = commonjsResolveImpl(path, originalModuleDir, true);
+	var resolvedPath = commonjsResolveImpl(path, originalModuleDir, true);
 	if (resolvedPath !== null) {
-    let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];
+    var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];
     if (cachedModule) return cachedModule.exports;
-    let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];
+    var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];
     if (shortTo) {
       cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];
       if (cachedModule)
         return cachedModule.exports;
       resolvedPath = commonjsResolveImpl(shortTo, null, true);
     }
-    const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];
+    var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];
     if (loader) {
       DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {
         id: resolvedPath,
diff --git a/packages/commonjs/test/snapshots/function.js.md b/packages/commonjs/test/snapshots/function.js.md
index 1d6e4fbff..1b9a679b2 100644
--- a/packages/commonjs/test/snapshots/function.js.md
+++ b/packages/commonjs/test/snapshots/function.js.md
@@ -357,24 +357,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -392,9 +392,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -409,9 +409,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -423,9 +423,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -441,9 +441,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -460,8 +460,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -473,7 +473,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -481,7 +481,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -489,18 +489,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -578,24 +578,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -613,9 +613,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -630,9 +630,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -644,9 +644,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -662,9 +662,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -681,8 +681,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -694,7 +694,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -702,7 +702,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -710,18 +710,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -795,24 +795,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -830,9 +830,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -847,9 +847,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -861,9 +861,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -879,9 +879,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -898,8 +898,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -911,7 +911,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -919,7 +919,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -927,18 +927,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -1026,7 +1026,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRegisterOrShort$1 (path, to) {␊
-      	const resolvedPath = commonjsResolveImpl(path, null);␊
+      	var resolvedPath = commonjsResolveImpl(path, null);␊
       	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
       	} else {␊
@@ -1034,24 +1034,24 @@ Generated by [AVA](https://avajs.dev).
       	}␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -1069,9 +1069,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -1086,9 +1086,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -1100,9 +1100,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -1118,9 +1118,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -1137,8 +1137,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -1150,7 +1150,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -1158,7 +1158,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -1166,18 +1166,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -1282,24 +1282,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -1317,9 +1317,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -1334,9 +1334,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -1348,9 +1348,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -1366,9 +1366,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -1385,8 +1385,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -1398,7 +1398,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -1406,7 +1406,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -1414,18 +1414,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -1519,24 +1519,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -1554,9 +1554,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -1571,9 +1571,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -1585,9 +1585,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -1603,9 +1603,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -1622,8 +1622,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -1635,7 +1635,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -1643,7 +1643,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -1651,18 +1651,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -1723,24 +1723,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -1758,9 +1758,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -1775,9 +1775,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -1789,9 +1789,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -1807,9 +1807,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -1826,8 +1826,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -1839,7 +1839,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -1847,7 +1847,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -1855,18 +1855,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -1959,24 +1959,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -1994,9 +1994,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -2011,9 +2011,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -2025,9 +2025,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -2043,9 +2043,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -2062,8 +2062,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -2075,7 +2075,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -2083,7 +2083,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -2091,18 +2091,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -2157,24 +2157,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -2192,9 +2192,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -2209,9 +2209,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -2223,9 +2223,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -2241,9 +2241,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -2260,8 +2260,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -2273,7 +2273,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -2281,7 +2281,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -2289,18 +2289,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -2382,7 +2382,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRegisterOrShort$1 (path, to) {␊
-      	const resolvedPath = commonjsResolveImpl(path, null);␊
+      	var resolvedPath = commonjsResolveImpl(path, null);␊
       	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
       	} else {␊
@@ -2390,24 +2390,24 @@ Generated by [AVA](https://avajs.dev).
       	}␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -2425,9 +2425,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -2442,9 +2442,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -2456,9 +2456,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -2474,9 +2474,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -2493,8 +2493,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -2506,7 +2506,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -2514,7 +2514,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -2522,18 +2522,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -2612,24 +2612,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -2647,9 +2647,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -2664,9 +2664,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -2678,9 +2678,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -2696,9 +2696,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -2715,8 +2715,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -2728,7 +2728,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -2736,7 +2736,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -2744,18 +2744,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -2852,7 +2852,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRegisterOrShort$1 (path, to) {␊
-      	const resolvedPath = commonjsResolveImpl(path, null);␊
+      	var resolvedPath = commonjsResolveImpl(path, null);␊
       	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
       	} else {␊
@@ -2860,24 +2860,24 @@ Generated by [AVA](https://avajs.dev).
       	}␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -2895,9 +2895,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -2912,9 +2912,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -2926,9 +2926,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -2944,9 +2944,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -2963,8 +2963,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -2976,7 +2976,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -2984,7 +2984,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -2992,18 +2992,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -3102,7 +3102,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRegisterOrShort$1 (path, to) {␊
-      	const resolvedPath = commonjsResolveImpl(path, null);␊
+      	var resolvedPath = commonjsResolveImpl(path, null);␊
       	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
       	} else {␊
@@ -3110,24 +3110,24 @@ Generated by [AVA](https://avajs.dev).
       	}␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -3145,9 +3145,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -3162,9 +3162,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -3176,9 +3176,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -3194,9 +3194,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -3213,8 +3213,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -3226,7 +3226,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -3234,7 +3234,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -3242,18 +3242,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -3323,24 +3323,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -3358,9 +3358,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -3375,9 +3375,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -3389,9 +3389,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -3407,9 +3407,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -3426,8 +3426,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -3439,7 +3439,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -3447,7 +3447,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -3455,18 +3455,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -3539,7 +3539,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRegisterOrShort$1 (path, to) {␊
-      	const resolvedPath = commonjsResolveImpl(path, null);␊
+      	var resolvedPath = commonjsResolveImpl(path, null);␊
       	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
       	} else {␊
@@ -3547,24 +3547,24 @@ Generated by [AVA](https://avajs.dev).
       	}␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -3582,9 +3582,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -3599,9 +3599,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -3613,9 +3613,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -3631,9 +3631,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -3650,8 +3650,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -3663,7 +3663,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -3671,7 +3671,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -3679,18 +3679,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -3789,7 +3789,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRegisterOrShort$1 (path, to) {␊
-      	const resolvedPath = commonjsResolveImpl(path, null);␊
+      	var resolvedPath = commonjsResolveImpl(path, null);␊
       	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
       	} else {␊
@@ -3797,24 +3797,24 @@ Generated by [AVA](https://avajs.dev).
       	}␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -3832,9 +3832,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -3849,9 +3849,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -3863,9 +3863,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -3881,9 +3881,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -3900,8 +3900,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -3913,7 +3913,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -3921,7 +3921,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -3929,18 +3929,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -4015,7 +4015,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRegisterOrShort$1 (path, to) {␊
-      	const resolvedPath = commonjsResolveImpl(path, null);␊
+      	var resolvedPath = commonjsResolveImpl(path, null);␊
       	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
       	} else {␊
@@ -4023,24 +4023,24 @@ Generated by [AVA](https://avajs.dev).
       	}␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -4058,9 +4058,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -4075,9 +4075,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -4089,9 +4089,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -4107,9 +4107,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -4126,8 +4126,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -4139,7 +4139,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -4147,7 +4147,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -4155,18 +4155,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -4256,24 +4256,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -4291,9 +4291,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -4308,9 +4308,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -4322,9 +4322,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -4340,9 +4340,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -4359,8 +4359,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -4372,7 +4372,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -4380,7 +4380,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -4388,18 +4388,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
@@ -4464,24 +4464,24 @@ Generated by [AVA](https://avajs.dev).
       	DYNAMIC_REQUIRE_LOADERS[path] = loader;␊
       }␊
       ␊
-      const DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
-      const DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
-      const DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
-      const DEFAULT_PARENT_MODULE = {␊
+      var DYNAMIC_REQUIRE_LOADERS = Object.create(null);␊
+      var DYNAMIC_REQUIRE_CACHE = Object.create(null);␊
+      var DYNAMIC_REQUIRE_SHORTS = Object.create(null);␊
+      var DEFAULT_PARENT_MODULE = {␊
       	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []␊
       };␊
-      const CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
+      var CHECKED_EXTENSIONS = ['', '.js', '.json'];␊
       ␊
       function normalize (path) {␊
       	path = path.replace(/\\\\/g, '/');␊
-      	const parts = path.split('/');␊
-      	const slashed = parts[0] === '';␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	var parts = path.split('/');␊
+      	var slashed = parts[0] === '';␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] === '.' || parts[i] === '') {␊
       			parts.splice(i--, 1);␊
       		}␊
       	}␊
-      	for (let i = 1; i < parts.length; i++) {␊
+      	for (var i = 1; i < parts.length; i++) {␊
       		if (parts[i] !== '..') continue;␊
       		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {␊
       			parts.splice(--i, 2);␊
@@ -4499,9 +4499,9 @@ Generated by [AVA](https://avajs.dev).
       function join () {␊
       	if (arguments.length === 0)␊
       	  return '.';␊
-      	let joined;␊
-      	for (let i = 0; i < arguments.length; ++i) {␊
-      	  let arg = arguments[i];␊
+      	var joined;␊
+      	for (var i = 0; i < arguments.length; ++i) {␊
+      	  var arg = arguments[i];␊
       	  if (arg.length > 0) {␊
       		if (joined === undefined)␊
       		  joined = arg;␊
@@ -4516,9 +4516,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function isPossibleNodeModulesPath (modulePath) {␊
-      	let c0 = modulePath[0];␊
+      	var c0 = modulePath[0];␊
       	if (c0 === '/' || c0 === '\\\\') return false;␊
-      	let c1 = modulePath[1], c2 = modulePath[2];␊
+      	var c1 = modulePath[1], c2 = modulePath[2];␊
       	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||␊
       		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;␊
       	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))␊
@@ -4530,9 +4530,9 @@ Generated by [AVA](https://avajs.dev).
         if (path.length === 0)␊
           return '.';␊
       ␊
-        let i = path.length - 1;␊
+        var i = path.length - 1;␊
         while (i > 0) {␊
-          const c = path.charCodeAt(i);␊
+          var c = path.charCodeAt(i);␊
           if ((c === 47 || c === 92) && i !== path.length - 1)␊
             break;␊
           i--;␊
@@ -4548,9 +4548,9 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolveImpl (path, originalModuleDir, testCache) {␊
-      	const shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
+      	var shouldTryNodeModules = isPossibleNodeModulesPath(path);␊
       	path = normalize(path);␊
-      	let relPath;␊
+      	var relPath;␊
       	if (path[0] === '/') {␊
       		originalModuleDir = '/';␊
       	}␊
@@ -4567,8 +4567,8 @@ Generated by [AVA](https://avajs.dev).
       			break; // Travelled too far up, avoid infinite loop␊
       		}␊
       ␊
-      		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
-      			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
+      		for (var extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {␊
+      			var resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];␊
       			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {␊
       				return resolvedPath;␊
       			}␊
@@ -4580,7 +4580,7 @@ Generated by [AVA](https://avajs.dev).
       			}␊
       		}␊
       		if (!shouldTryNodeModules) break;␊
-      		const nextDir = normalize(originalModuleDir + '/..');␊
+      		var nextDir = normalize(originalModuleDir + '/..');␊
       		if (nextDir === originalModuleDir) break;␊
       		originalModuleDir = nextDir;␊
       	}␊
@@ -4588,7 +4588,7 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsResolve (path, originalModuleDir) {␊
-      	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
       		return resolvedPath;␊
       	}␊
@@ -4596,18 +4596,18 @@ Generated by [AVA](https://avajs.dev).
       }␊
       ␊
       function commonjsRequire (path, originalModuleDir) {␊
-      	let resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
+      	var resolvedPath = commonjsResolveImpl(path, originalModuleDir);␊
       	if (resolvedPath !== null) {␊
-          let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
+          var cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];␊
           if (cachedModule) return cachedModule.exports;␊
-          let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
+          var shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];␊
           if (shortTo) {␊
             cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];␊
             if (cachedModule)␊
               return cachedModule.exports;␊
             resolvedPath = commonjsResolveImpl(shortTo, null);␊
           }␊
-          const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
+          var loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];␊
           if (loader) {␊
             DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {␊
               id: resolvedPath,␊
diff --git a/packages/commonjs/test/snapshots/function.js.snap b/packages/commonjs/test/snapshots/function.js.snap
index db1941b1d..c0d62a8ac 100644
Binary files a/packages/commonjs/test/snapshots/function.js.snap and b/packages/commonjs/test/snapshots/function.js.snap differ