Move regexp implementation into its own folder.

src/regexp-macro-assembler-irregexp-inl.h

-// Copyright 2008-2009 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_IRREGEXP_INL_H_
-#define V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_
-
-#include "src/ast.h"
-#include "src/bytecodes-irregexp.h"
-
-namespace v8 {
-namespace internal {
-
-#ifdef V8_INTERPRETED_REGEXP
-
-void RegExpMacroAssemblerIrregexp::Emit(uint32_t byte,
-                                        uint32_t twenty_four_bits) {
-  uint32_t word = ((twenty_four_bits << BYTECODE_SHIFT) | byte);
-  DCHECK(pc_ <= buffer_.length());
-  if (pc_  + 3 >= buffer_.length()) {
-    Expand();
-  }
-  *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word;
-  pc_ += 4;
-}
-
-
-void RegExpMacroAssemblerIrregexp::Emit16(uint32_t word) {
-  DCHECK(pc_ <= buffer_.length());
-  if (pc_ + 1 >= buffer_.length()) {
-    Expand();
-  }
-  *reinterpret_cast<uint16_t*>(buffer_.start() + pc_) = word;
-  pc_ += 2;
-}
-
-
-void RegExpMacroAssemblerIrregexp::Emit8(uint32_t word) {
-  DCHECK(pc_ <= buffer_.length());
-  if (pc_ == buffer_.length()) {
-    Expand();
-  }
-  *reinterpret_cast<unsigned char*>(buffer_.start() + pc_) = word;
-  pc_ += 1;
-}
-
-
-void RegExpMacroAssemblerIrregexp::Emit32(uint32_t word) {
-  DCHECK(pc_ <= buffer_.length());
-  if (pc_ + 3 >= buffer_.length()) {
-    Expand();
-  }
-  *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word;
-  pc_ += 4;
-}
-
-#endif  // V8_INTERPRETED_REGEXP
-
-} }  // namespace v8::internal
-
-#endif  // V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_