Move namer into javascript backend.

lib/compiler/implementation/universe.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 class Universe {
   Map<Element, CodeBuffer> generatedCode;
   Map<Element, CodeBuffer> generatedBailoutCode;
   final Set<ClassElement> instantiatedClasses;
   final Set<FunctionElement> staticFunctionsNeedingGetter;
   final Map<SourceString, Set<Selector>> invokedNames;
@@ skipping 123 matching lines @@
              Elements.constructOperatorName(const SourceString("[]="), false),
              null, 2);
 
   Selector.call(SourceString name,
                 LibraryElement library,
                 int arity,
                 [List<SourceString> named = const []])
       : this(SelectorKind.CALL, name, library, arity, named);
 
   Selector.callClosure(int arity, [List<SourceString> named = const []])
-      : this(SelectorKind.CALL, Namer.CLOSURE_INVOCATION_NAME, null,
+      : this(SelectorKind.CALL, Compiler.CALL_OPERATOR_NAME, null,
              arity, named);
 
   Selector.callClosureFrom(Selector selector)
-      : this(SelectorKind.CALL, Namer.CLOSURE_INVOCATION_NAME, null,
+      : this(SelectorKind.CALL, Compiler.CALL_OPERATOR_NAME, null,
              selector.argumentCount, selector.namedArguments);
 
   // TODO(kasperl): This belongs somewhere else.
   Selector.noSuchMethod()
       : this(SelectorKind.CALL, Compiler.NO_SUCH_METHOD, null, 2);
 
   bool isGetter() => kind === SelectorKind.GETTER;
   bool isSetter() => kind === SelectorKind.SETTER;
   bool isCall() => kind === SelectorKind.CALL;
 
@@ skipping 225 matching lines @@
     }
 
     return false;
   }
 
   toString() {
     return 'Selector($kind, "${name.slowToString()}", '
            '$argumentCount, type=$receiverType)';
   }
 }