Redo "Make dart2js typed_data implementation classes private"

sdk/lib/_internal/compiler/implementation/compiler.dart

Index: sdk/lib/_internal/compiler/implementation/compiler.dart
diff --git a/sdk/lib/_internal/compiler/implementation/compiler.dart b/sdk/lib/_internal/compiler/implementation/compiler.dart
index 417ed7b356af112718d1b995bc4135954e1496b7..5d36f91ff8d24905a2bbe8876f551776328ce88c 100644
--- a/sdk/lib/_internal/compiler/implementation/compiler.dart
+++ b/sdk/lib/_internal/compiler/implementation/compiler.dart
@@ -805,10 +805,10 @@ abstract class Compiler implements DiagnosticListener {
           findRequiredElement(library, 'MirrorSystem');
       mirrorsUsedClass =
           findRequiredElement(library, 'MirrorsUsed');
-    } else if (uri == new Uri(scheme: 'dart', path: 'typed_data')) {
+    } else if (uri == new Uri(scheme: 'dart', path: '_native_typed_data')) {
       typedDataLibrary = library;
       typedDataClass =
-          findRequiredElement(library, 'TypedData');
+          findRequiredElement(library, 'NativeTypedData');
     } else if (uri == new Uri(scheme: 'dart', path: '_internal')) {
       symbolImplementationClass =
           findRequiredElement(library, 'Symbol');