Get rid of the name in HInvokeDynamic (just use the selector instead).

lib/compiler/implementation/js_backend/backend.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 InvocationInfo {
   int parameterCount = -1;
   List<HType> providedTypes;
   List<Element> compiledFunctions;
 
   InvocationInfo(HInvoke node, HTypeMap types)
@@ skipping 268 matching lines @@
   }
 
   /**
    *  Register a dynamic invocation and collect the provided types for the
    *  named selector.
    */
   void registerDynamicInvocation(HInvokeDynamicMethod node,
                                  Selector selector,
                                  HTypeMap types) {
     Map<Selector, InvocationInfo> invocationInfos =
-        invocationInfo.putIfAbsent(node.name,
+        invocationInfo.putIfAbsent(selector.name,
                                    () => new Map<Selector, InvocationInfo>());
     InvocationInfo info = invocationInfos[selector];
     if (info != null) {
       void recompile(Element element) {
         if (compiler.phase == Compiler.PHASE_COMPILING) {
           invalidateAfterCodegen.add(element);
         }
       }
 
       info.update(node, types, recompile);
@@ skipping 111 matching lines @@
   HType optimisticReturnTypesWithRecompilationOnTypeChange(
       FunctionElement caller, FunctionElement callee) {
     returnInfo.putIfAbsent(callee, () => new ReturnInfo.unknownType());
     ReturnInfo info = returnInfo[callee];
     if (info.returnType != HType.UNKNOWN && caller != null) {
       info.addCompiledFunction(caller);
     }
     return info.returnType;
   }
 }