Tighten the types on rootNodes in ViewRef to List<Node>, for fuzzy arrow purposes.

Using dynamic as bottom ("fuzzy arrow") will become an error in Dart 2.0. dart-lang/sdk#29630

PiperOrigin-RevId: 182127013

Author: Googler

angular/CHANGELOG.md

@@ -17,6 +17,8 @@ const tokenB = const OpaqueToken<dynamic('b');
 *   `ComponentRef.componentType` throws an `UnsupportedError`, pending removal.
     This removes our last invocation of `.runtimeType`, which has potentially
     severe code-size implications for some applications.
+*   The type of `EmbeddedViewRef.rootNodes` and `ViewRefImpl.rootNodes` has
+    changed from `List<dynamic>` to `List<Node>`.
 
 ## 5.0.0-alpha+3
 

angular/lib/src/core/linker/view_ref.dart

@@ -1,3 +1,5 @@
+import 'dart:html';
+
 import 'package:angular/src/core/change_detection/constants.dart'
     show ChangeDetectionStrategy;
 
@@ -62,7 +64,7 @@ abstract class EmbeddedViewRef extends ViewRef {
   /// Checks whether this view has a local variable called [variableName].
   bool hasLocal(String variableName);
 
-  List<dynamic> get rootNodes;
+  List<Node> get rootNodes;
 
   /// Destroys the view and all of the data structures associated with it.
   void destroy();
@@ -79,7 +81,7 @@ class ViewRefImpl implements EmbeddedViewRef, ChangeDetectorRef {
   @Deprecated('Use appView instead')
   AppView<dynamic> get internalView => appView;
 
-  List get rootNodes => appView.flatRootNodes;
+  List<Node> get rootNodes => appView.flatRootNodes;
 
   ChangeDetectorRef get changeDetectorRef => this;