Perform TODO(gc) cleanup for TODO-lockdown.

src/arm/macro-assembler-arm.cc

 // Copyright 2011 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 1889 matching lines @@
   // in initial map.
   bind(&non_instance);
   ldr(result, FieldMemOperand(result, Map::kConstructorOffset));
 
   // All done.
   bind(&done);
 }
 
 
 void MacroAssembler::CallStub(CodeStub* stub, Condition cond) {
-  // TODO(gc): Fix this!
+  // TODO(1599): Do not call stubs from stubs that do not allow stub calls.
   // ASSERT(allow_stub_calls());  // Stub calls are not allowed in some stubs.
   Call(stub->GetCode(), RelocInfo::CODE_TARGET, kNoASTId, cond);
 }
 
 
 MaybeObject* MacroAssembler::TryCallStub(CodeStub* stub, Condition cond) {
   ASSERT(allow_stub_calls());  // Stub calls are not allowed in some stubs.
   Object* result;
   { MaybeObject* maybe_result = stub->TryGetCode();
     if (!maybe_result->ToObject(&result)) return maybe_result;
@@ skipping 1457 matching lines @@
 void CodePatcher::EmitCondition(Condition cond) {
   Instr instr = Assembler::instr_at(masm_.pc_);
   instr = (instr & ~kCondMask) | cond;
   masm_.emit(instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM