Fix a bug where we would emit:

sdk/lib/_internal/compiler/implementation/ssa/codegen.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 ssa;
 
 class SsaCodeGeneratorTask extends CompilerTask {
 
   final JavaScriptBackend backend;
 
@@ skipping 2029 matching lines @@
     Element element = node.element;
     world.registerStaticUse(element);
     String lazyGetter = backend.namer.isolateLazyInitializerAccess(element);
     js.VariableUse target = new js.VariableUse(lazyGetter);
     js.Call call = new js.Call(target, <js.Expression>[]);
     push(call, node);
   }
 
   void visitStaticStore(HStaticStore node) {
     world.registerStaticUse(node.element);
-    js.VariableUse variableUse =
-        new js.VariableUse(backend.namer.isolateAccess(node.element));
+    js.VariableUse isolate = new js.VariableUse(backend.namer.CURRENT_ISOLATE);
+    // Create a property access to make sure expressions and variable
+    // declarations recognizers don't see this assignment as a local
+    // assignment.
+    js.Node variable = new js.PropertyAccess.field(
+        isolate, backend.namer.getName(node.element));
     use(node.inputs[0]);
-    push(new js.Assignment(variableUse, pop()), node);
+    push(new js.Assignment(variable, pop()), node);
   }
 
   void visitStringConcat(HStringConcat node) {
     use(node.left);
     js.Expression jsLeft = pop();
     use(node.right);
     push(new js.Binary('+', jsLeft, pop()), node);
   }
 
   void visitStringify(HStringify node) {
@@ skipping 973 matching lines @@
   if (leftType.canBeNull() && rightType.canBeNull()) {
     if (left.isConstantNull() || right.isConstantNull() ||
         (leftType.isPrimitive() && leftType == rightType)) {
       return '==';
     }
     return null;
   } else {
     return '===';
   }
 }