[stubs] Store typeof string on Oddballs.

src/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HYDROGEN_INSTRUCTIONS_H_
 #define V8_HYDROGEN_INSTRUCTIONS_H_
 
 #include <cstring>
 #include <iosfwd>
 
@@ skipping 5969 matching lines @@
                          HeapNumber::kValueOffset,
                          Representation::Integer32());
   }
 
   static HObjectAccess ForHeapNumberValueHighestBits() {
     return HObjectAccess(kDouble,
                          HeapNumber::kValueOffset + kIntSize,
                          Representation::Integer32());
   }
 
+  static HObjectAccess ForOddballTypeOf() {
+    return HObjectAccess(kInobject, Oddball::kTypeOfOffset,
+                         Representation::HeapObject());
+  }
+
   static HObjectAccess ForElementsPointer() {
     return HObjectAccess(kElementsPointer, JSObject::kElementsOffset);
   }
 
   static HObjectAccess ForLiteralsPointer() {
     return HObjectAccess(kInobject, JSFunction::kLiteralsOffset);
   }
 
   static HObjectAccess ForNextFunctionLinkPointer() {
     return HObjectAccess(kInobject, JSFunction::kNextFunctionLinkOffset);
@@ skipping 2056 matching lines @@
 };
 
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_