Revert "Add support for closure calls through getters."

sdk/lib/_internal/lib/js_helper.dart

 // Copyright (c) 2013, 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 _js_helper;
 
 import 'dart:collection';
 import 'dart:_isolate_helper' show
     IsolateNatives,
     leaveJsAsync,
@@ skipping 132 matching lines @@
     return _memberName;
   }
 
   bool get isMethod => _kind == METHOD;
   bool get isGetter => _kind == GETTER;
   bool get isSetter => _kind == SETTER;
   bool get isAccessor => _kind != METHOD;
 
   List get positionalArguments {
     if (isGetter) return const [];
-    var argumentCount = _arguments.length - _namedArgumentNames.length;
+    var argumentCount =
+        _arguments.length - _namedArgumentNames.length;
     if (argumentCount == 0) return const [];
     var list = [];
     for (var index = 0 ; index < argumentCount ; index++) {
       list.add(_arguments[index]);
     }
     return makeLiteralListConst(list);
   }
 
   Map<Symbol, dynamic> get namedArguments {
     // TODO: Make maps const (issue 10471)
@@ skipping 3155 matching lines @@
     JS('', '#.addEventListener("error", #, false)',
        script, convertDartClosureToJS((event) {
       completer.completeError(
           new DeferredLoadException("Loading $uri failed."));
     }, 1));
     JS('', 'document.body.appendChild(#)', script);
 
     return completer.future;
   });
 }