dart2js: Set the name to `null` for parameter stubs of static functions.

pkg/compiler/lib/src/js_emitter/parameter_stub_generator.dart

 // Copyright (c) 2015, 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.
 
 part of dart2js.js_emitter;
 
 class ParameterStubGenerator {
   static final Set<Selector> emptySelectorSet = new Set<Selector>();
 
   final Namer namer;
@@ skipping 130 matching lines @@
             'return this.#(#);',
             [namer.instanceMethodName(member), argumentsBuffer]);
       }
     } else {
       body = js.statement('return #(#)',
           [emitter.staticFunctionAccess(member), argumentsBuffer]);
     }
 
     jsAst.Fun function = js('function(#) { #; }', [parametersBuffer, body]);
 
-    jsAst.Name name = namer.invocationName(selector);
+    jsAst.Name name = member.isStatic ? null : namer.invocationName(selector);
     jsAst.Name callName =
         (callSelector != null) ? namer.invocationName(callSelector) : null;
     return new ParameterStubMethod(name, callName, function);
   }
 
   // We fill the lists depending on possible/invoked selectors. For example,
   // take method foo:
   //    foo(a, b, {c, d});
   //
   // We may have multiple ways of calling foo:
@@ skipping 112 matching lines @@
             generateParameterStub(member, selector, null);
         if (stub != null) {
           stubs.add(stub);
         }
       }
     }
 
     return stubs;
   }
 }