Removes dartc reliance on its own libraries, now can be targeted at any implementation's libraries

compiler/lib/implementation/regexp.js

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-function native_JSSyntaxRegExp_firstMatch(str) {
-  var re = $DartRegExpToJSRegExp(this);
-  var m = re.exec(str);
-  if (m != null) {
-    var match = native_JSSyntaxMatch__new(this, str);
-    match.match_ = m;
-    match.lastIndex_ = re.lastIndex;
-    return match;
-  }
-  return $Dart$Null;
-}
-
-function native_JSSyntaxRegExp_hasMatch(str) {
-  return $DartRegExpToJSRegExp(this).test(str);
-}
-
-function native_JSSyntaxRegExp_stringMatch(str) {
-  var m = $DartRegExpToJSRegExp(this).exec(str);
-  return (m != null ? m[0] : $Dart$Null);
-}
-
-function native_JSSyntaxMatch_group(nb) {
-  return this.match_[nb];
-}
-
-function native_JSSyntaxMatch_groupCount() {
-  return this.match_.length;
-}
-
-function native_JSSyntaxMatch_start() {
-  return this.match_.index;
-}
-
-function native_JSSyntaxMatch_end() {
-  return this.lastIndex_;
-}
-
-function native__LazyAllMatchesIterator__jsInit(regExp) {
-  this.re = $DartRegExpToJSRegExp(regExp);
-}
-
-// The given RegExp is only used to initialize a new Match. We use the
-// cached JS regexp to compute the next match.
-function native__LazyAllMatchesIterator__computeNextMatch(regExp, str) {
-  var re = this.re;
-  if (re === null) return $Dart$Null;
-  var m = re.exec(str);
-  if (m == null) {
-    this.re = null;
-    return $Dart$Null;
-  }
-  var match = native_JSSyntaxMatch__new(regExp, str);
-  match.match_ = m;
-  match.lastIndex_ = re.lastIndex;
-  return match;
-}
-
-function $DartRegExpToJSRegExp(exp) {
-  var flags = "g";
-  if (native_JSSyntaxRegExp__multiLine(exp)) flags += "m";
-  if (native_JSSyntaxRegExp__ignoreCase(exp)) flags += "i";
-  return new RegExp(native_JSSyntaxRegExp__pattern(exp), flags);
-}