[regexp] move regexp parser into own files.

test/cctest/test-regexp.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 16 matching lines @@
 
 #include <cstdlib>
 #include <sstream>
 
 #include "include/v8.h"
 #include "src/v8.h"
 
 #include "src/ast/ast.h"
 #include "src/char-predicates-inl.h"
 #include "src/ostreams.h"
-#include "src/parsing/parser.h"
 #include "src/regexp/jsregexp.h"
 #include "src/regexp/regexp-macro-assembler.h"
 #include "src/regexp/regexp-macro-assembler-irregexp.h"
+#include "src/regexp/regexp-parser.h"
 #include "src/splay-tree-inl.h"
 #include "src/string-stream.h"
 #ifdef V8_INTERPRETED_REGEXP
 #include "src/regexp/interpreter-irregexp.h"
 #else  // V8_INTERPRETED_REGEXP
 #include "src/macro-assembler.h"
 #if V8_TARGET_ARCH_ARM
 #include "src/arm/assembler-arm.h"  // NOLINT
 #include "src/arm/macro-assembler-arm.h"
 #include "src/regexp/arm/regexp-macro-assembler-arm.h"
@@ skipping 1869 matching lines @@
   // .toString() throws on non-RegExps that aren't RegExp.prototype
   v8::Local<v8::Value> resultToStringError = CompileRun(
       "var exception;"
       "try { RegExp.prototype.toString.call(null) }"
       "catch (e) { exception = e; }"
       "exception");
   CHECK_EQ(1, use_counts[v8::Isolate::kRegExpPrototypeStickyGetter]);
   CHECK_EQ(1, use_counts[v8::Isolate::kRegExpPrototypeToString]);
   CHECK(resultToStringError->IsObject());
 }