Introduce POLYMORPHIC

src/v8globals.h

 // Copyright 2012 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 242 matching lines @@
 enum InlineCacheState {
   // Has never been executed.
   UNINITIALIZED,
   // Has been executed but monomorhic state has been delayed.
   PREMONOMORPHIC,
   // Has been executed and only one receiver type has been seen.
   MONOMORPHIC,
   // Like MONOMORPHIC but check failed due to prototype.
   MONOMORPHIC_PROTOTYPE_FAILURE,
   // Multiple receiver types have been seen.
+  POLYMORPHIC,
+  // Many receiver types have been seen.
   MEGAMORPHIC,
   // Special states for debug break or step in prepare stubs.
   DEBUG_BREAK,
   DEBUG_PREPARE_STEP_IN
 };
 
 
 enum CheckType {
   RECEIVER_MAP_CHECK,
   STRING_CHECK,
@@ skipping 289 matching lines @@
 
 enum ClearExceptionFlag {
   KEEP_EXCEPTION,
   CLEAR_EXCEPTION
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8GLOBALS_H_