Move IS_INDEXABLE_FIELD to JsGetName.

sdk/lib/_internal/compiler/js_lib/native_helper.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_helper;
 
 
 // TODO(ngeoffray): stop using this method once our optimizers can
 // change str1.contains(str2) into str1.indexOf(str2) != -1.
 bool contains(String userAgent, String name) {
@@ skipping 240 matching lines @@
 
 patchInteriorProto(obj, interceptor) {
   var proto = JS('', 'Object.getPrototypeOf(#)', obj);
   var record = makeDispatchRecord(interceptor, proto, null, null);
   setDispatchProperty(proto, record);
   return interceptor;
 }
 
 
 makeLeafDispatchRecord(interceptor) {
-  var fieldName = JS_IS_INDEXABLE_FIELD_NAME();
+  var fieldName = JS_GET_NAME(JsGetName.IS_INDEXABLE_FIELD_NAME);
   bool indexability = JS('bool', r'!!#[#]', interceptor, fieldName);
   return makeDispatchRecord(interceptor, false, null, indexability);
 }
 
 makeDefaultDispatchRecord(tag, interceptorClass, proto) {
   var interceptor = JS('', '#.prototype', interceptorClass);
   var isLeaf = JS('bool', '(#[#]) === true', leafTags, tag);
   if (isLeaf) {
     return makeLeafDispatchRecord(interceptor);
   } else {
@@ skipping 374 matching lines @@
 const _safariHooksTransformer = const JS_CONST(r'''
 function(hooks) { return hooks; }
 ''');
 
 
 const _dartExperimentalFixupGetTagHooksTransformer = const JS_CONST(r'''
 function(hooks) {
   if (typeof dartExperimentalFixupGetTag != "function") return hooks;
   hooks.getTag = dartExperimentalFixupGetTag(hooks.getTag);
 }''');