Use short array syntax in method signatures

lib/src/codegen/js_codegen.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.
 
 library dev_compiler.src.codegen.js_codegen;
 
 import 'dart:collection' show HashSet, HashMap;
 
 import 'package:analyzer/analyzer.dart' hide ConstantEvaluator;
 import 'package:analyzer/src/generated/ast.dart' hide ConstantEvaluator;
@@ skipping 577 matching lines @@
       var tMethods = [];
       var sNames = [];
       var cType = classElem.type;
       for (MethodDeclaration node in methods) {
         if (!(node.isSetter || node.isGetter || node.isAbstract)) {
           var name = node.name.name;
           var element = node.element;
           var unary = node.parameters.parameters.isEmpty;
           var memberName = _emitMemberName(name,
               type: cType, unary: unary, isStatic: node.isStatic);
+          var parts = _emitFunctionTypeParts(element.type);
           var property =
-              new JS.Property(memberName, _emitTypeName(element.type));
+              new JS.Property(memberName, new JS.ArrayInitializer(parts));
           if (node.isStatic) {
             tStatics.add(property);
             sNames.add(memberName);
           } else tMethods.add(property);
         }
       }
       build(name, elements) {
         var o =
             new JS.ObjectInitializer(elements, vertical: elements.length > 1);
         var e = js.call('() => #', o);
@@ skipping 1966 matching lines @@
 
 /// A special kind of element created by the compiler, signifying a temporary
 /// variable. These objects use instance equality, and should be shared
 /// everywhere in the tree where they are treated as the same variable.
 class TemporaryVariableElement extends LocalVariableElementImpl {
   TemporaryVariableElement.forNode(Identifier name) : super.forNode(name);
 
   int get hashCode => identityHashCode(this);
   bool operator ==(Object other) => identical(this, other);
 }