remove this == null

src/factory.cc

 // Copyright 2014 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/factory.h"
 
 #include "src/conversions.h"
 #include "src/isolate-inl.h"
 #include "src/macro-assembler.h"
 
@@ skipping 1393 matching lines @@
                               bool is_debug) {
   Handle<ByteArray> reloc_info = NewByteArray(desc.reloc_size, TENURED);
   Handle<ConstantPoolArray> constant_pool =
       desc.origin->NewConstantPool(isolate());
 
   // Compute size.
   int body_size = RoundUp(desc.instr_size, kObjectAlignment);
   int obj_size = Code::SizeFor(body_size);
 
   Handle<Code> code = NewCodeRaw(obj_size, immovable);
-  ASSERT(!isolate()->code_range()->exists() ||
+  ASSERT(isolate()->code_range() == NULL ||
+         !isolate()->code_range()->valid() ||
          isolate()->code_range()->contains(code->address()));
 
   // The code object has not been fully initialized yet.  We rely on the
   // fact that no allocation will happen from this point on.
   DisallowHeapAllocation no_gc;
   code->set_gc_metadata(Smi::FromInt(0));
   code->set_ic_age(isolate()->heap()->global_ic_age());
   code->set_instruction_size(desc.instr_size);
   code->set_relocation_info(*reloc_info);
   code->set_flags(flags);
@@ skipping 911 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal