Revert "Rename mappedBy to map."

sdk/lib/_internal/compiler/implementation/js_backend/emitter.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.
 
 part of js_backend;
 
 /**
  * A function element that represents a closure call. The signature is copied
  * from the given element.
  */
@@ skipping 1831 matching lines @@
       // Values match JSInvocationMirror in js-helper library.
       int type = selector.invocationMirrorKind;
       String methodName = selector.invocationMirrorMemberName;
       List<js.Parameter> parameters = <js.Parameter>[];
       CodeBuffer args = new CodeBuffer();
       for (int i = 0; i < selector.argumentCount; i++) {
         parameters.add(new js.Parameter('\$$i'));
       }
 
       List<js.Expression> argNames =
-          selector.getOrderedNamedArguments().map((SourceString name) =>
+          selector.getOrderedNamedArguments().mappedBy((SourceString name) =>
               js.string(name.slowToString())).toList();
 
       String internalName = namer.invocationMirrorInternalName(selector);
 
       String createInvocationMirror = namer.getName(
           compiler.createInvocationMirrorElement);
 
       js.Expression expression =
           new js.This()
           .dot(noSuchMethodName)
           .callWith(
               <js.Expression>[
                   new js.VariableUse(namer.CURRENT_ISOLATE)
                   .dot(createInvocationMirror)
                   .callWith(
                       <js.Expression>[
                           js.string(methodName),
                           js.string(internalName),
                           new js.LiteralNumber('$type'),
                           new js.ArrayInitializer.from(
-                              parameters.map((param) => js.use(param.name))
+                              parameters.mappedBy((param) => js.use(param.name))
                                         .toList()),
                           new js.ArrayInitializer.from(argNames)])]);
       js.Expression function =
           new js.Fun(parameters,
               new js.Block(<js.Statement>[new js.Return(expression)]));
       return function;
     }
 
     void addNoSuchMethodHandlers(SourceString ignore, Set<Selector> selectors) {
       // Cache the object class and type.
@@ skipping 454 matching lines @@
 """;
 const String HOOKS_API_USAGE = """
 // The code supports the following hooks:
 // dartPrint(message)   - if this function is defined it is called
 //                        instead of the Dart [print] method.
 // dartMainRunner(main) - if this function is defined, the Dart [main]
 //                        method will not be invoked directly.
 //                        Instead, a closure that will invoke [main] is
 //                        passed to [dartMainRunner].
 """;