[stubs] Unify (and optimize) implementation of ToObject.

src/deoptimizer.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_DEOPTIMIZER_H_
 #define V8_DEOPTIMIZER_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
@@ skipping 367 matching lines @@
     "Uninitialized boilerplate in fast clone")                                 \
   V(kUninitializedBoilerplateLiterals, "Uninitialized boilerplate literals")   \
   V(kUnknownMapInPolymorphicAccess, "Unknown map in polymorphic access")       \
   V(kUnknownMapInPolymorphicCall, "Unknown map in polymorphic call")           \
   V(kUnknownMapInPolymorphicElementAccess,                                     \
     "Unknown map in polymorphic element access")                               \
   V(kUnknownMap, "Unknown map")                                                \
   V(kValueMismatch, "value mismatch")                                          \
   V(kWrongInstanceType, "wrong instance type")                                 \
   V(kWrongMap, "wrong map")                                                    \
-  V(kUndefinedOrNullInForIn, "null or undefined in for-in")
+  V(kUndefinedOrNullInForIn, "null or undefined in for-in")                    \
+  V(kUndefinedOrNullInToObject, "null or undefined in ToObject")
 
 
 class Deoptimizer : public Malloced {
  public:
   enum BailoutType {
     EAGER,
     LAZY,
     SOFT,
     // This last bailout type is not really a bailout, but used by the
     // debugger to deoptimize stack frames to allow inspection.
@@ skipping 739 matching lines @@
   Object** expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEOPTIMIZER_H_