remove dependency on compiler from resolution

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

Index: pkg/compiler/lib/src/resolution/resolution_common.dart
diff --git a/pkg/compiler/lib/src/resolution/resolution_common.dart b/pkg/compiler/lib/src/resolution/resolution_common.dart
index 819c2921d84d66de04738cf0f41f29d4901949d9..53d3c69b7cf3d3fb9d729f5b228d368fd2740db2 100644
--- a/pkg/compiler/lib/src/resolution/resolution_common.dart
+++ b/pkg/compiler/lib/src/resolution/resolution_common.dart
@@ -6,22 +6,18 @@ library dart2js.resolution.common;
 
 import '../common.dart';
 import '../common/resolution.dart' show Resolution;
-import '../compiler.dart' show Compiler;
 import '../elements/elements.dart';
 import '../tree/tree.dart';
-
 import 'registry.dart' show ResolutionRegistry;
 import 'scope.dart' show Scope;
 import 'type_resolver.dart' show TypeResolver;
 
 class CommonResolverVisitor<R> extends Visitor<R> {
-  final Compiler compiler;
-
-  CommonResolverVisitor(Compiler this.compiler);
+  final Resolution resolution;
 
-  DiagnosticReporter get reporter => compiler.reporter;
+  CommonResolverVisitor(this.resolution);
 
-  Resolution get resolution => compiler.resolution;
+  DiagnosticReporter get reporter => resolution.reporter;
 
   R visitNode(Node node) {
     return reporter.internalError(
@@ -34,7 +30,7 @@ class CommonResolverVisitor<R> extends Visitor<R> {
   R visit(Node node) => (node == null) ? null : node.accept(this);
 
   void addDeferredAction(Element element, void action()) {
-    compiler.enqueuer.resolution.addDeferredAction(element, action);
+    resolution.enqueuer.addDeferredAction(element, action);
   }
 }
 
@@ -52,9 +48,9 @@ abstract class MappingVisitor<T> extends CommonResolverVisitor<T> {
   /// The current scope of the visitor.
   Scope get scope;
 
-  MappingVisitor(Compiler compiler, ResolutionRegistry this.registry)
-      : typeResolver = new TypeResolver(compiler),
-        super(compiler);
+  MappingVisitor(Resolution resolution, this.registry)
+      : typeResolver = new TypeResolver(resolution),
+        super(resolution);
 
   AsyncMarker get currentAsyncMarker => AsyncMarker.SYNC;