ARM: Fix wrong value returned from keyed property assignemnt

src/arm/codegen-arm.cc

 // Copyright 2010 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 7215 matching lines @@
              MemOperand(scratch1, key, LSL,
                         kPointerSizeLog2 - (kSmiTagSize + kSmiShiftSize)));
 
       // Make sure that the expected number of instructions are generated.
       ASSERT_EQ(kInlinedKeyedStoreInstructionsAfterPatch,
                 masm_->InstructionsGeneratedSince(&check_inlined_codesize));
     }
 
     ASSERT(we_remembered_the_write_barrier);
 
+    // Make sure that r0 holds the value which is the result of the expression.
+    __ Move(r0, value);
+
     deferred->BindExit();
   } else {
     frame()->CallKeyedStoreIC(strict_mode_flag());
   }
 }
 
 
 #ifdef DEBUG
 bool CodeGenerator::HasValidEntryRegisters() { return true; }
 #endif
@@ skipping 150 matching lines @@
                BinaryOpIC::GetName(runtime_operands_type_));
   return name_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM