[regexp] Port RegExpConstructResultStub to TurboFan

src/code-stubs.h

 // 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.
 
 #ifndef V8_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/code-stub-assembler.h"
@@ skipping 2049 matching lines @@
 
 
 class RegExpExecStub: public PlatformCodeStub {
  public:
   explicit RegExpExecStub(Isolate* isolate) : PlatformCodeStub(isolate) { }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(RegExpExec);
   DEFINE_PLATFORM_CODE_STUB(RegExpExec, PlatformCodeStub);
 };
 
-
+// TODO(jgruber): Remove this once all uses in regexp.js have been removed.
 class RegExpConstructResultStub final : public HydrogenCodeStub {
  public:
   explicit RegExpConstructResultStub(Isolate* isolate)
       : HydrogenCodeStub(isolate) { }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(RegExpConstructResult);
   DEFINE_HYDROGEN_CODE_STUB(RegExpConstructResult, HydrogenCodeStub);
 };
 
 
@@ skipping 1046 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromMachineType(MachineType type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_