[es6] Implement spec compliant ToPrimitive in the runtime.

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.
 
 #if V8_TARGET_ARCH_MIPS
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 3395 matching lines @@
   __ TailCallRuntime(Runtime::kStringToNumber, 1, 1);
   __ bind(&not_string);
 
   Label not_oddball;
   __ Branch(&not_oddball, ne, a1, Operand(ODDBALL_TYPE));
   __ Ret(USE_DELAY_SLOT);
   __ lw(v0, FieldMemOperand(a0, Oddball::kToNumberOffset));
   __ bind(&not_oddball);
 
   __ push(a0);  // Push argument.
-  __ InvokeBuiltin(Context::TO_NUMBER_BUILTIN_INDEX, JUMP_FUNCTION);
+  __ TailCallRuntime(Runtime::kToNumber, 1, 1);
 }
 
 
 void StringHelper::GenerateFlatOneByteStringEquals(
     MacroAssembler* masm, Register left, Register right, Register scratch1,
     Register scratch2, Register scratch3) {
   Register length = scratch1;
 
   // Compare lengths.
   Label strings_not_equal, check_zero_length;
@@ skipping 2201 matching lines @@
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS