fix(renderer): use _eachChildView for nextSibling

Author: sis0k0

nativescript-angular/animations/animation-engine.ts

@@ -90,7 +90,7 @@ export class NativeScriptAnimationEngine extends DomAnimationEngine {
         // find all of the children that are currently animating and clear
         // them out by destroying each of them.
         let elms = [];
-        element._eachLayoutView(child => {
+        (<any>element)._eachChildView(child => {
             if (cssClasses(<NgView>child).get(MARKED_FOR_ANIMATION)) {
                 elms.push(child);
             }

nativescript-angular/view-util.ts

@@ -211,7 +211,7 @@ export class ViewUtil {
         let index = 0;
         let found = false;
 
-        parent._eachLayoutView(child => {
+        (<any>parent)._eachChildView(child => {
             if (child === node) {
                 found = true;
             }