[turbofan] Cleanup use of virtual, OVERRIDE, FINAL.

src/compiler/gap-resolver.h

 // 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.
 
 #ifndef V8_COMPILER_GAP_RESOLVER_H_
 #define V8_COMPILER_GAP_RESOLVER_H_
 
 #include "src/compiler/instruction.h"
 
 namespace v8 {
@@ skipping 21 matching lines @@
   void Resolve(ParallelMove* parallel_move) const;
 
  private:
   // Perform the given move, possibly requiring other moves to satisfy
   // dependencies.
   void PerformMove(ZoneList<MoveOperands>* moves, MoveOperands* move) const;
 
   // Assembler used to emit moves and save registers.
   Assembler* const assembler_;
 };
-}
-}
-}  // namespace v8::internal::compiler
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8
 
 #endif  // V8_COMPILER_GAP_RESOLVER_H_