Avoid repeated resolution of types by marking them as resolved.

runtime/vm/raw_object.h

 // 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.
 
 #ifndef VM_RAW_OBJECT_H_
 #define VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/token.h"
@@ skipping 1117 matching lines @@
 
 class RawInstance : public RawObject {
   RAW_HEAP_OBJECT_IMPLEMENTATION(Instance);
 };
 
 
 class RawAbstractType : public RawInstance {
  protected:
   enum TypeState {
     kAllocated,  // Initial state.
+    kResolved,  // Type class and type arguments resolved.
     kBeingFinalized,  // In the process of being finalized.
     kFinalizedInstantiated,  // Instantiated type ready for use.
     kFinalizedUninstantiated,  // Uninstantiated type ready for use.
   };
 
  private:
   RAW_HEAP_OBJECT_IMPLEMENTATION(AbstractType);
 
   friend class ObjectStore;
 };
@@ skipping 622 matching lines @@
   // Make sure this is updated when new TypedData types are added.
   ASSERT(kTypedDataInt8ArrayViewCid == kTypedDataInt8ArrayCid + 14);
   ASSERT(kExternalTypedDataInt8ArrayCid == kTypedDataInt8ArrayViewCid + 15);
   ASSERT(kNullCid == kExternalTypedDataInt8ArrayCid + 14);
   return (kNullCid - kTypedDataInt8ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_