Revert of Array length reduction should throw in strict mode if it can't delete an element.

src/runtime/runtime.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_RUNTIME_RUNTIME_H_
 #define V8_RUNTIME_RUNTIME_H_
 
 #include "src/allocation.h"
 #include "src/objects.h"
 #include "src/unicode.h"
@@ skipping 1012 matching lines @@
   F(KeyedLoadIC_Miss, 4, 1)                  \
   F(KeyedLoadIC_MissFromStubFailure, 4, 1)   \
   F(KeyedStoreIC_Miss, 5, 1)                 \
   F(KeyedStoreIC_MissFromStubFailure, 5, 1)  \
   F(KeyedStoreIC_Slow, 5, 1)                 \
   F(LoadElementWithInterceptor, 2, 1)        \
   F(LoadIC_Miss, 4, 1)                       \
   F(LoadIC_MissFromStubFailure, 4, 1)        \
   F(LoadPropertyWithInterceptor, 3, 1)       \
   F(LoadPropertyWithInterceptorOnly, 3, 1)   \
-  F(StoreCallbackProperty, 6, 1)             \
+  F(StoreCallbackProperty, 5, 1)             \
   F(StoreIC_Miss, 5, 1)                      \
   F(StoreIC_MissFromStubFailure, 5, 1)       \
   F(StoreIC_Slow, 5, 1)                      \
   F(StorePropertyWithInterceptor, 3, 1)      \
   F(ToBooleanIC_Miss, 1, 1)                  \
   F(Unreachable, 0, 1)
 
 
 #define FOR_EACH_INTRINSIC_RETURN_OBJECT(F) \
   FOR_EACH_INTRINSIC_IC(F)                  \
@@ skipping 180 matching lines @@
 
 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
 STATIC_ASSERT(LANGUAGE_END == 3);
 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 2> {};
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_RUNTIME_RUNTIME_H_