Rename DummyRecieverConstant to DummyConstant

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

Index: sdk/lib/_internal/compiler/implementation/js_backend/namer.dart
diff --git a/sdk/lib/_internal/compiler/implementation/js_backend/namer.dart b/sdk/lib/_internal/compiler/implementation/js_backend/namer.dart
index 8ac77b0f51351049b8cf95904938d7f66aa06acc..1b79342173fb6dde7d83fd212840f190aa5287c5 100644
--- a/sdk/lib/_internal/compiler/implementation/js_backend/namer.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_backend/namer.dart
@@ -1189,7 +1189,7 @@ class ConstantNamingVisitor implements ConstantVisitor {
     add('methods');
   }
 
-  visitDummyReceiver(DummyReceiverConstant constant) {
+  visitDummy(DummyConstant constant) {
     add('dummy_receiver');
   }
 }
@@ -1269,7 +1269,7 @@ class ConstantCanonicalHasher implements ConstantVisitor<int> {
     return _hashString(5, typeName);
   }
 
-  visitDummyReceiver(DummyReceiverConstant constant) {
+  visitDummy(DummyConstant constant) {
     compiler.internalError(
         'DummyReceiverConstant should never be named and never be subconstant');
   }