Move regexp implementation into its own folder.

src/regexp/regexp-macro-assembler-tracer.h

 // Copyright 2008 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_REGEXP_MACRO_ASSEMBLER_TRACER_H_
-#define V8_REGEXP_MACRO_ASSEMBLER_TRACER_H_
+#ifndef V8_REGEXP_REGEXP_MACRO_ASSEMBLER_TRACER_H_
+#define V8_REGEXP_REGEXP_MACRO_ASSEMBLER_TRACER_H_
+
+#include "src/regexp/regexp-macro-assembler.h"
 
 namespace v8 {
 namespace internal {
 
 // Decorator on a RegExpMacroAssembler that write all calls.
 class RegExpMacroAssemblerTracer: public RegExpMacroAssembler {
  public:
   RegExpMacroAssemblerTracer(Isolate* isolate, RegExpMacroAssembler* assembler);
   virtual ~RegExpMacroAssemblerTracer();
   virtual void AbortedCodeGeneration();
@@ skipping 57 matching lines @@
   virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);
   virtual void ClearRegisters(int reg_from, int reg_to);
   virtual void WriteStackPointerToRegister(int reg);
 
  private:
   RegExpMacroAssembler* assembler_;
 };
 
 }}  // namespace v8::internal
 
-#endif  // V8_REGEXP_MACRO_ASSEMBLER_TRACER_H_
+#endif  // V8_REGEXP_REGEXP_MACRO_ASSEMBLER_TRACER_H_