dart2js: fix named arguments with Function.apply in the startup emitter.

pkg/compiler/lib/src/js_emitter/program_builder/program_builder.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.
 
 library dart2js.js_emitter.program_builder;
 
 import '../js_emitter.dart' show computeMixinClass, Emitter;
 import '../model.dart';
 
 import '../../common.dart';
@@ skipping 541 matching lines @@
 
   DartMethod _buildMethod(MethodElement element) {
     js.Name name = namer.methodPropertyName(element);
     js.Expression code = backend.generatedCode[element];
 
     // TODO(kasperl): Figure out under which conditions code is null.
     if (code == null) return null;
 
     bool canTearOff = false;
     js.Name tearOffName;
-    bool isClosure = false;
+    bool isClosureCallMethod = false;
     bool isNotApplyTarget = !element.isFunction || element.isAccessor;
 
     bool canBeReflected = _methodCanBeReflected(element);
     bool canBeApplied = _methodCanBeApplied(element);
 
     js.Name aliasName = backend.isAliasedSuperMember(element)
         ? namer.aliasedSuperMemberPropertyName(element)
         : null;
 
     if (isNotApplyTarget) {
       canTearOff = false;
     } else {
       if (element.enclosingClass.isClosure) {
         canTearOff = false;
-        isClosure = true;
+        isClosureCallMethod = true;
       } else {
         // Careful with operators.
         canTearOff = universe.hasInvokedGetter(element, _compiler.world) ||
             (canBeReflected && !element.isOperator);
         assert(canTearOff ||
                !universe.methodsNeedingSuperGetter.contains(element));
         tearOffName = namer.getterForElement(element);
       }
     }
 
@@ skipping 33 matching lines @@
     if (canBeApplied || canBeReflected) {
       FunctionSignature signature = element.functionSignature;
       requiredParameterCount = signature.requiredParameterCount;
       optionalParameterDefaultValues =
           _computeParameterDefaultValues(signature);
     }
 
     return new InstanceMethod(element, name, code,
         _generateParameterStubs(element, canTearOff), callName,
         needsTearOff: canTearOff, tearOffName: tearOffName,
-        isClosure: isClosure, aliasName: aliasName,
+        isClosureCallMethod: isClosureCallMethod, aliasName: aliasName,
         canBeApplied: canBeApplied, canBeReflected: canBeReflected,
         requiredParameterCount: requiredParameterCount,
         optionalParameterDefaultValues: optionalParameterDefaultValues,
         functionType: functionType);
   }
 
   js.Expression _generateFunctionType(DartType type, OutputUnit outputUnit) {
     if (type.containsTypeVariables) {
       js.Expression thisAccess = js.js(r'this.$receiver');
       return backend.rti.getSignatureEncoding(type, thisAccess);
@@ skipping 187 matching lines @@
       Constant constant = new Constant(name, holder, constantValue);
       _constants[constantValue] = constant;
     }
   }
 
   Holder _registerStaticStateHolder() {
     return _registry.registerHolder(
         namer.staticStateHolder, isStaticStateHolder: true);
   }
 }