Handlify code allocation.

test/cctest/test-macro-assembler-mips.cc

 // Copyright 2013 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 73 matching lines @@
   // a1, respectively.
   __ CopyBytes(a0, a1, a2, a3);
   __ li(a2, Operand(reinterpret_cast<int>(&a0_)));
   __ li(a3, Operand(reinterpret_cast<int>(&a1_)));
   __ sw(a0, MemOperand(a2));
   __ jr(ra);
   __ sw(a1, MemOperand(a3));
 
   CodeDesc desc;
   masm->GetCode(&desc);
-  Object* code = isolate->heap()->CreateCode(
-      desc,
-      Code::ComputeFlags(Code::STUB),
-      Handle<Code>())->ToObjectChecked();
-  CHECK(code->IsCode());
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
 
-  ::F f = FUNCTION_CAST< ::F>(Code::cast(code)->entry());
+  ::F f = FUNCTION_CAST< ::F>(code->entry());
 
   // Initialise source data with non-zero bytes.
   for (int i = 0; i < data_size; i++) {
     src_buffer[i] = to_non_zero(i);
   }
 
   const int fuzz = 11;
 
   for (int size = 0; size < 600; size++) {
     for (const byte* src = src_buffer; src < src_buffer + fuzz; src++) {
@@ skipping 58 matching lines @@
   TestNaN(
           "var result;"
           "for (var i = 0; i < 2; i++) {"
           "  result = [NaN];"
           "}"
           "result;");
 }
 
 
 #undef __