dart2js: Rename "current isolate" to "static state (holder)".

pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.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 dart2js.ir_builder_task;
 
 import '../closure.dart' as closurelib;
 import '../closure.dart' hide ClosureScope;
 import '../constants/expressions.dart';
 import '../dart_types.dart';
@@ skipping 3204 matching lines @@
         validateArgumentCount(exactly: 2);
         List<ir.Primitive> arguments = argumentNodes.mapToList(visit);
         return irBuilder.buildStringConcatenation(arguments);
 
       case 'JS_CURRENT_ISOLATE_CONTEXT':
         validateArgumentCount(exactly: 0);
 
         if (!compiler.hasIsolateSupport) {
           // If the isolate library is not used, we just generate code
           // to fetch the current isolate.
-          continue GET_CURRENT_ISOLATE;
+          continue GET_STATIC_STATE;
         }
         return buildIsolateHelperInvocation('_currentIsolate',
             CallStructure.NO_ARGS);
 
-      GET_CURRENT_ISOLATE: case 'JS_CURRENT_ISOLATE':
+      GET_STATIC_STATE: case 'JS_GET_STATIC_STATE':
         validateArgumentCount(exactly: 0);
 
         return irBuilder.buildForeignCode(
-            js.js.parseForeignJS(backend.namer.currentIsolate),
+            js.js.parseForeignJS(backend.namer.staticStateHolder),
             const <ir.Primitive>[],
             NativeBehavior.PURE);
 
       case 'JS_CALL_IN_ISOLATE':
         validateArgumentCount(exactly: 2);
 
         if (!compiler.hasIsolateSupport) {
           ir.Primitive closure = visit(argumentNodes.tail.head);
           return irBuilder.buildCallInvocation(closure, CallStructure.NO_ARGS,
               const <ir.Primitive>[]);
@@ skipping 74 matching lines @@
   }
 
   processSetStatic(ir.SetStatic node) {
     node.body = replacementFor(node.body);
   }
 
   processContinuation(ir.Continuation node) {
     node.body = replacementFor(node.body);
   }
 }