Use entities in most of MirrorsData (part 2)

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 00c66e2c89c5e0bfac29b49c1f42653cf2b79106..1672fc5ef6b9508a744b1aef8b0257020056bd9b 100644
--- a/pkg/compiler/lib/src/resolution/resolution_strategy.dart
+++ b/pkg/compiler/lib/src/resolution/resolution_strategy.dart
@@ -34,6 +34,7 @@ import '../js_backend/runtime_types.dart';
 import '../library_loader.dart';
 import '../native/enqueue.dart' show NativeResolutionEnqueuer;
 import '../native/resolver.dart';
+import '../options.dart';
 import '../tree/tree.dart' show Node;
 import '../serialization/task.dart';
 import '../patch_parser.dart';
@@ -108,7 +109,7 @@ class ResolutionFrontEndStrategy extends FrontendStrategyBase
       new ResolutionNoSuchMethodResolver();
 
   MirrorsDataBuilder createMirrorsDataBuilder() {
-    return new MirrorsDataImpl(
+    return new ResolutionMirrorsData(
         _compiler, _compiler.options, elementEnvironment, commonElements);
   }
 
@@ -936,3 +937,24 @@ class ResolutionWorkItemBuilder extends WorkItemBuilder {
     return _resolution.createWorkItem(element);
   }
 }
+
+class ResolutionMirrorsData extends MirrorsDataImpl {
+  ResolutionMirrorsData(Compiler compiler, CompilerOptions options,
+      ElementEnvironment elementEnvironment, CommonElements commonElements)
+      : super(compiler, options, elementEnvironment, commonElements);
+
+  @override
+  bool isClassInjected(covariant ClassElement cls) => cls.isInjected;
+
+  @override
+  bool isClassResolved(covariant ClassElement cls) => cls.isResolved;
+
+  @override
+  void forEachConstructor(
+      covariant ClassElement cls, void f(ConstructorEntity constructor)) {
+    cls.constructors.forEach((Element _constructor) {
+      ConstructorElement constructor = _constructor;
+      f(constructor);
+    });
+  }
+}