Fix wrong assumptions I had on the isolate library.

frog/leg/emitter.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.
 
 /**
  * A function element that represents a closure call. The signature is copied
  * from the given element.
  */
 class ClosureInvocationElement extends FunctionElement {
   ClosureInvocationElement(SourceString name,
@@ skipping 588 matching lines @@
       generateMethod('get ${getterName.slowToString()}', jsName,
                      Selector.GETTER);
     });
 
     compiler.universe.invokedSetters.forEach((SourceString setterName) {
       String jsName = namer.setterName(setterName);
       generateMethod('set ${setterName.slowToString()}', jsName,
                      Selector.SETTER);
     });
   }
-  
+
   String buildIsolateSetup(Element appMain, Element isolateMain) {
     String mainAccess = "${namer.isolateAccess(appMain)}";
     String currentIsolate = "${namer.CURRENT_ISOLATE}";
     String mainEnsureGetter = '';
     // Since we pass the closurized version of the main method to
     // the isolate method, we must make sure that it exists.
     if (!compiler.universe.staticFunctionsNeedingGetter.contains(appMain)) {
       String invocationName =
           "${namer.closureInvocationName(Selector.INVOCATION_0)}";
       mainEnsureGetter = "$mainAccess.$invocationName = $mainAccess";
     }
 
   // TODO(ngeoffray): These globals are currently required by the isolate
   // library, but since leg already generates code on an Isolate object, they
   // are not really needed. We should remove them once Leg replaces Frog.
     return """
 var \$globalThis = $currentIsolate;
-var \$globalState = $currentIsolate;
-var \$globals = $currentIsolate;
+var \$globalState;
+var \$globals;
 function \$static_init(){};
 
 function \$initGlobals(context) {
   context.isolateStatics = new ${namer.ISOLATE}();
 }
 function \$setGlobals(context) {
-  \$globals = context.isolateStatics;
+  $currentIsolate = context.isolateStatics;
+  \$globalThis = $currentIsolate;
 }
 $mainEnsureGetter
 ${namer.isolateAccess(isolateMain)}($mainAccess);""";
   }
 
   String assembleProgram() {
     measure(() {
       StringBuffer buffer = new StringBuffer();
       buffer.add('function ${namer.ISOLATE}() {');
       emitStaticNonFinalFieldInitializations(buffer);
@@ skipping 11 matching lines @@
             compiler.isolateLibrary.find(Compiler.START_ROOT_ISOLATE);
         buffer.add(buildIsolateSetup(main, isolateMain));
       } else {
         buffer.add('${namer.isolateAccess(main)}();\n');
       }
       compiler.assembledCode = buffer.toString();
     });
     return compiler.assembledCode;
   }
 }