Remove static fields in the namer.

lib/compiler/implementation/ssa/optimize.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.
 
 interface OptimizationPhase {
   String get name();
   void visitGraph(HGraph graph);
 }
 
 class SsaOptimizerTask extends CompilerTask {
@@ skipping 414 matching lines @@
     if (node.builtin) {
       return foldBuiltinEqualsCheck(node);
     }
 
     if (left.isConstant() && right.isConstant()) {
       return super.visitEquals(node);
     }
 
     if (left.propagatedType.isExact()) {
       HBoundedType type = left.propagatedType;
-      Element element = type.lookupMember(Namer.OPERATOR_EQUALS);
+      Element element = type.lookupMember(Elements.OPERATOR_EQUALS);
       if (element !== null) {
         // If the left-hand side is guaranteed to be a non-primitive
         // type and and it defines operator==, we emit a call to that
         // operator.
         return super.visitEquals(node);
       } else if (right.isConstantNull()) {
         return graph.addConstantBool(false);
       } else {
         // We can just emit an identity check because the type does
         // not implement operator=.
@@ skipping 783 matching lines @@
             }
             break;
           default:
             assert(false);
             break;
         }
       }
     }
   }
 }