Clean up state handling in ClassElement.

dart/lib/compiler/implementation/closure.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.
 
 #library("closureToClassMapper");
 
 #import("elements/elements.dart");
 #import("leg.dart");
 #import("scanner/scannerlib.dart");
 #import("tree/tree.dart");
@@ skipping 48 matching lines @@
 
 class ClosureClassElement extends ClassElement {
   ClosureClassElement(SourceString name,
                       Compiler compiler,
                       Element enclosingElement)
       : super(name,
               enclosingElement,
               // By assigning a fresh class-id we make sure that the hashcode
               // is unique, but also emit closure classes after all other
               // classes (since the emitter sorts classes by their id).
-              compiler.getNextFreeClassId()) {
-    // We assign twice to [supertypeLoadState] as it contains asserts
-    // which enforce certain sequence of transitions.
-    supertypeLoadState = ClassElement.STATE_STARTED;
-    supertypeLoadState = ClassElement.STATE_DONE;
-    // Same as for [supertypeLoadState] above.
-    resolutionState = ClassElement.STATE_STARTED;
-    resolutionState = ClassElement.STATE_DONE;
+              compiler.getNextFreeClassId(),
+              ClassElement.STATE_DONE) {
     compiler.closureClass.ensureResolved(compiler);
     supertype = compiler.closureClass.computeType(compiler);
     interfaces = const EmptyLink<Type>();
     allSupertypes = new Link<Type>(supertype);
   }
   bool isClosure() => true;
 }
 
 class BoxElement extends Element {
   BoxElement(SourceString name, Element enclosingElement)
@@ skipping 418 matching lines @@
   }
 
   visitTryStatement(TryStatement node) {
     // TODO(ngeoffray): implement finer grain state.
     bool oldInTryStatement = inTryStatement;
     inTryStatement = true;
     node.visitChildren(this);
     inTryStatement = oldInTryStatement;
   }
 }