dart2js: Refactoring, documentation, and a few bugfixes in Namer class.

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

 // Copyright (c) 2014, 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 InterceptorStubGenerator {
   final Compiler compiler;
   final Namer namer;
   final JavaScriptBackend backend;
@@ skipping 273 matching lines @@
           ''', typeCheck);
       }
     }
     return null;
   }
 
   jsAst.Expression generateOneShotInterceptor(String name) {
     Selector selector = backend.oneShotInterceptors[name];
     Set<ClassElement> classes =
         backend.getInterceptedClassesOn(selector.name);
-    String getInterceptorName =
-        namer.getInterceptorName(backend.getInterceptorMethod, classes);
+    String getInterceptorName = namer.nameForGetInterceptor(classes);
 
     List<String> parameterNames = <String>[];
     parameterNames.add('receiver');
 
     if (selector.isSetter) {
       parameterNames.add('value');
     } else {
       for (int i = 0; i < selector.argumentCount; i++) {
         parameterNames.add('a$i');
       }
@@ skipping 58 matching lines @@
 
           var map = new jsAst.ObjectInitializer(properties);
           elements.add(map);
         }
       }
     }
 
     return new jsAst.ArrayInitializer(elements);
   }
 }