Detect overflow of contant pool in virtual frame compiler.

src/frame-element.h

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 95 matching lines @@
     return result;
   }
 
   // Static indirection table for handles to constants.  If a frame
   // element represents a constant, the data contains an index into
   // this table of handles to the actual constants.
   typedef ZoneList<Handle<Object> > ZoneObjectList;
 
   static ZoneObjectList* ConstantList();
 
+  static bool ConstantPoolOverflowed() {
+    return !DataField::is_valid(ConstantList()->length());
+  }
+
   // Clear the constants indirection table.
   static void ClearConstantList() {
     ConstantList()->Clear();
   }
 
   bool is_synced() const { return SyncedField::decode(value_); }
 
   void set_sync() {
     ASSERT(type() != MEMORY);
     value_ = value_ | SyncedField::encode(true);
@@ skipping 138 matching lines @@
   class UntaggedInt32Field: public BitField<bool, 5, 1> {};
   class TypeInfoField: public BitField<int, 6, 7> {};
   class DataField: public BitField<uint32_t, 13, 32 - 13> {};
 
   friend class VirtualFrame;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_FRAME_ELEMENT_H_