Revert of Disallow subclassing Arrays.

src/mips/builtins-mips.cc

 // 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.
 
 
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
@@ skipping 120 matching lines @@
     __ SmiTst(a2, t0);
     __ Assert(ne, kUnexpectedInitialMapForArrayFunction1,
               t0, Operand(zero_reg));
     __ GetObjectType(a2, a3, t0);
     __ Assert(eq, kUnexpectedInitialMapForArrayFunction2,
               t0, Operand(MAP_TYPE));
   }
 
   // Run the native code for the Array function called as a normal function.
   // Tail call a stub.
-  __ mov(a3, a1);
   __ LoadRoot(a2, Heap::kUndefinedValueRootIndex);
   ArrayConstructorStub stub(masm->isolate());
   __ TailCallStub(&stub);
 }
 
 
 void Builtins::Generate_StringConstructCode(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- a0                     : number of arguments
   //  -- a1                     : constructor function
@@ skipping 1525 matching lines @@
     __ break_(0xCC);
   }
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS