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

src/mips/code-stubs-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
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 2657 matching lines @@
   __ mov(a2, zero_reg);
   __ GetBuiltinFunction(a1, Builtins::CALL_NON_FUNCTION);
   __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(),
           RelocInfo::CODE_TARGET);
 }
 
 
 static void EmitWrapCase(MacroAssembler* masm, int argc, Label* cont) {
   // Wrap the receiver and patch it back onto the stack.
   { FrameScope frame_scope(masm, StackFrame::INTERNAL);
-    __ Push(a1, a3);
-    __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
+    __ Push(a1);
+    __ mov(a0, a3);
+    ToObjectStub stub(masm->isolate());
+    __ CallStub(&stub);
     __ pop(a1);
   }
   __ Branch(USE_DELAY_SLOT, cont);
   __ sw(v0, MemOperand(sp, argc * kPointerSize));
 }
 
 
 static void CallFunctionNoFeedback(MacroAssembler* masm,
                                    int argc, bool needs_checks,
                                    bool call_as_method) {
@@ skipping 3028 matching lines @@
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS