Make IC patching resilient to flushing of the original target() ic.

src/objects-inl.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 4971 matching lines @@
 int Code::stub_info() {
   ASSERT(kind() == COMPARE_IC || kind() == BINARY_OP_IC || kind() == LOAD_IC);
   Object* value = READ_FIELD(this, kTypeFeedbackInfoOffset);
   return Smi::cast(value)->value();
 }
 
 
 void Code::set_stub_info(int value) {
   ASSERT(kind() == COMPARE_IC ||
          kind() == BINARY_OP_IC ||
+         kind() == STUB ||
          kind() == LOAD_IC ||
          kind() == KEYED_LOAD_IC ||
          kind() == STORE_IC ||
          kind() == KEYED_STORE_IC);
   WRITE_FIELD(this, kTypeFeedbackInfoOffset, Smi::FromInt(value));
 }
 
 
 void Code::set_deoptimizing_functions(Object* value) {
   ASSERT(kind() == OPTIMIZED_FUNCTION);
@@ skipping 950 matching lines @@
 #undef WRITE_UINT32_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_