Handlify code allocation.

test/cctest/test-assembler-arm64.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 10919 matching lines @@
     __ dc32(0);
   }
 
   __ RecordVeneerPool(masm.pc_offset(), veneer_pool_size);
   for (unsigned i = 0; i < veneer_pool_size / kInstructionSize; ++i) {
     __ nop();
   }
 
   __ bind(&exit);
 
-  Heap* heap = isolate->heap();
+  HandleScope handle_scope(isolate);
   CodeDesc desc;
-  Object* code_object = NULL;
-  Code* code;
   masm.GetCode(&desc);
-  MaybeObject* maybe_code = heap->CreateCode(desc, 0, masm.CodeObject());
-  maybe_code->ToObject(&code_object);
-  code = Code::cast(code_object);
+  Handle<Code> code = isolate->factory()->NewCode(desc, 0, masm.CodeObject());
 
   unsigned pool_count = 0;
   int pool_mask = RelocInfo::ModeMask(RelocInfo::CONST_POOL) |
                   RelocInfo::ModeMask(RelocInfo::VENEER_POOL);
-  for (RelocIterator it(code, pool_mask); !it.done(); it.next()) {
+  for (RelocIterator it(*code, pool_mask); !it.done(); it.next()) {
     RelocInfo* info = it.rinfo();
     if (RelocInfo::IsConstPool(info->rmode())) {
       ASSERT(info->data() == constant_pool_size);
       ++pool_count;
     }
     if (RelocInfo::IsVeneerPool(info->rmode())) {
       ASSERT(info->data() == veneer_pool_size);
       ++pool_count;
     }
   }
 
   ASSERT(pool_count == 2);
 
   TEARDOWN();
 }