Share the JavaScript based LinkedHashMap implementation between constant maps and the LinkedHashMap…

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

Index: pkg/compiler/lib/src/resolution/registry.dart
diff --git a/pkg/compiler/lib/src/resolution/registry.dart b/pkg/compiler/lib/src/resolution/registry.dart
index 317efbb4074fcb4d2fa84f81ddea1ec65c7d47c6..15082856f66d10c8c35825f2870065cdcd6b0de0 100644
--- a/pkg/compiler/lib/src/resolution/registry.dart
+++ b/pkg/compiler/lib/src/resolution/registry.dart
@@ -262,6 +262,11 @@ class ResolutionRegistry extends Registry {
     world.registerInstantiatedClass(compiler.typeClass, this);
   }
 
+  void registerMapLiteral(Node node, DartType type, bool isConstant) {
+    setType(node, type);
+    backend.resolutionCallbacks.onMapLiteral(this, type, isConstant);
+  }
+
   // TODO(johnniwinther): Remove the [ResolverVisitor] dependency. Its only
   // needed to lookup types in the current scope.
   void registerJsCall(Node node, ResolverVisitor visitor) {
@@ -314,10 +319,6 @@ class ResolutionRegistry extends Registry {
     backend.resolutionCallbacks.onStringInterpolation(this);
   }
 
-  void registerConstantMap() {
-    backend.resolutionCallbacks.onConstantMap(this);
-  }
-
   void registerFallThroughError() {
     backend.resolutionCallbacks.onFallThroughError(this);
   }