Remove static fields in the namer.

lib/compiler/implementation/enqueue.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 EnqueueTask extends CompilerTask {
   final Enqueuer codegen;
   final Enqueuer resolution;
 
   String get name() => 'Enqueue';
 
@@ skipping 132 matching lines @@
       // Make sure that the closure understands a call with the given
       // selector. For a method-invocation of the form o.foo(a: 499), we
       // need to make sure that closures can handle the optional argument if
       // there exists a field or getter 'foo'.
       var names = universe.instantiatedClassInstanceFields;
       // TODO(ahe): Might be enough to use invokedGetters.
       for (SourceString name in names) {
         Set<Selector> invokedSelectors = universe.invokedNames[name];
         if (invokedSelectors != null) {
           for (Selector selector in invokedSelectors) {
-            registerDynamicInvocation(Namer.CLOSURE_INVOCATION_NAME, selector);
+            registerDynamicInvocation(compiler.namer.CLOSURE_INVOCATION_NAME,
+                                      selector);
           }
         }
       }
     });
   }
 
   void processInstantiatedClassMember(Element member) {
     if (universe.generatedCode.containsKey(member)) return;
     if (resolvedElements[member] !== null) return;
 
@@ skipping 160 matching lines @@
   void registerIsCheck(Element element) {
     universe.isChecks.add(element);
   }
 
   void forEach(f(WorkItem work)) {
     while (!queue.isEmpty()) {
       f(queue.removeLast());
     }
   }
 }