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

src/arguments.cc

 // Copyright 2013 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.
 
 #include "src/arguments.h"
 
 #include "src/api.h"
 #include "src/vm-state-inl.h"
 
 namespace v8 {
@@ skipping 52 matching lines @@
       Function f, Arg1 arg1, Arg2 arg2) {                        \
     Isolate* isolate = this->isolate();                          \
     VMState<EXTERNAL> state(isolate);                            \
     ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f)); \
     PropertyCallbackInfo<ReturnValue> info(begin());             \
     f(arg1, arg2, info);                                         \
     return GetReturnValue<ReturnValue>(isolate);                 \
   }
 
 
-#define WRITE_CALL_2_VOID(Function, ReturnValue, Arg1, Arg2)               \
-  void PropertyCallbackArguments::Call(Function f, Arg1 arg1, Arg2 arg2) { \
-    Isolate* isolate = this->isolate();                                    \
-    VMState<EXTERNAL> state(isolate);                                      \
-    ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));           \
-    PropertyCallbackInfo<ReturnValue> info(begin());                       \
-    f(arg1, arg2, info);                                                   \
-  }
+#define WRITE_CALL_2_VOID(Function, ReturnValue, Arg1, Arg2)                   \
+void PropertyCallbackArguments::Call(Function f,                               \
+                                     Arg1 arg1,                                \
+                                     Arg2 arg2) {                              \
+  Isolate* isolate = this->isolate();                                          \
+  VMState<EXTERNAL> state(isolate);                                            \
+  ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));                 \
+  PropertyCallbackInfo<ReturnValue> info(begin());                             \
+  f(arg1, arg2, info);                                                         \
+}
 
 
 FOR_EACH_CALLBACK_TABLE_MAPPING_0(WRITE_CALL_0)
 FOR_EACH_CALLBACK_TABLE_MAPPING_1(WRITE_CALL_1)
 FOR_EACH_CALLBACK_TABLE_MAPPING_2(WRITE_CALL_2)
 FOR_EACH_CALLBACK_TABLE_MAPPING_2_VOID_RETURN(WRITE_CALL_2_VOID)
 
 #undef WRITE_CALL_0
 #undef WRITE_CALL_1
 #undef WRITE_CALL_2
 #undef WRITE_CALL_2_VOID
 
 
 double ClobberDoubleRegisters(double x1, double x2, double x3, double x4) {
   // TODO(ulan): This clobbers only subset of registers depending on compiler,
   // Rewrite this in assembly to really clobber all registers.
   // GCC for ia32 uses the FPU and does not touch XMM registers.
   return x1 * 1.01 + x2 * 2.02 + x3 * 3.03 + x4 * 4.04;
 }
 
 
 }  // namespace internal
 }  // namespace v8