Less inequivalence on Hello World!

pkg/compiler/lib/src/resolution/resolution_strategy.dart

Index: pkg/compiler/lib/src/resolution/resolution_strategy.dart
diff --git a/pkg/compiler/lib/src/resolution/resolution_strategy.dart b/pkg/compiler/lib/src/resolution/resolution_strategy.dart
index 2b47335564765e87d8a77a9e75d946f09dc5a373..e805d6ba8fd1155a2d42594d27f69e718db70b16 100644
--- a/pkg/compiler/lib/src/resolution/resolution_strategy.dart
+++ b/pkg/compiler/lib/src/resolution/resolution_strategy.dart
@@ -65,7 +65,7 @@ class ResolutionFrontEndStrategy implements FrontendStrategy {
 
   ElementEnvironment get elementEnvironment => _elementEnvironment;
 
-  DartTypes get dartTypes => _compiler.types;
+  DartTypes get dartTypes => _compiler.resolution.types;
 
   LibraryLoaderTask createLibraryLoader(
       ResolvedUriTranslator uriTranslator,
@@ -115,7 +115,7 @@ class ResolutionFrontEndStrategy implements FrontendStrategy {
 
   RuntimeTypesNeedBuilder createRuntimeTypesNeedBuilder() {
     return new ResolutionRuntimeTypesNeedBuilderImpl(
-        elementEnvironment, _compiler.types);
+        elementEnvironment, dartTypes);
   }
 
   ResolutionWorldBuilder createResolutionWorldBuilder(