Move regexp implementation into its own folder.

src/regexp/jsregexp-inl.h

 // Copyright 2013 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_JSREGEXP_INL_H_
-#define V8_JSREGEXP_INL_H_
+#ifndef V8_REGEXP_JSREGEXP_INL_H_
+#define V8_REGEXP_JSREGEXP_INL_H_
 
 #include "src/allocation.h"
 #include "src/handles.h"
 #include "src/heap/heap.h"
-#include "src/jsregexp.h"
 #include "src/objects.h"
+#include "src/regexp/jsregexp.h"
 
 namespace v8 {
 namespace internal {
 
 
 RegExpImpl::GlobalCache::~GlobalCache() {
   // Deallocate the register array if we allocated it in the constructor
   // (as opposed to using the existing jsregexp_static_offsets_vector).
   if (register_array_size_ > Isolate::kJSRegexpStaticOffsetsVectorSize) {
     DeleteArray(register_array_);
@@ skipping 49 matching lines @@
   if (num_matches_ == 0) {
     // After a failed match we shift back by one result.
     index -= registers_per_match_;
   }
   return &register_array_[index];
 }
 
 
 } }  // namespace v8::internal
 
-#endif  // V8_JSREGEXP_INL_H_
+#endif  // V8_REGEXP_JSREGEXP_INL_H_