Use patching for regexp implementation.

lib/compiler/implementation/lib/mockimpl.dart

Index: lib/compiler/implementation/lib/mockimpl.dart
diff --git a/lib/compiler/implementation/lib/mockimpl.dart b/lib/compiler/implementation/lib/mockimpl.dart
index 90f084ee82309edf106a982741a7633eb1658328..e3484cc7084cb31deb9c8b087178725221e2ac4a 100644
--- a/lib/compiler/implementation/lib/mockimpl.dart
+++ b/lib/compiler/implementation/lib/mockimpl.dart
@@ -6,123 +6,6 @@
 
 // TODO(ahe): Remove this file.
 
-class JSSyntaxRegExp implements RegExp {
-  final String pattern;
-  final bool multiLine;
-  final bool ignoreCase;
-
-  const JSSyntaxRegExp(String pattern,
-                       [bool multiLine = false, bool ignoreCase = false])
-    : this.pattern = pattern,
-      this.multiLine = multiLine,
-      this.ignoreCase = ignoreCase;
-
-  JSSyntaxRegExp._globalVersionOf(JSSyntaxRegExp other)
-      : this.pattern = other.pattern,
-        this.multiLine = other.multiLine,
-        this.ignoreCase = other.ignoreCase {
-    regExpAttachGlobalNative(this);
-  }
-
-  Match firstMatch(String str) {
-    List<String> m = regExpExec(this, checkString(str));
-    if (m === null) return null;
-    var matchStart = regExpMatchStart(m);
-    // m.lastIndex only works with flag 'g'.
-    var matchEnd = matchStart + m[0].length;
-    return new MatchImplementation(pattern, str, matchStart, matchEnd, m);
-  }
-
-  bool hasMatch(String str) => regExpTest(this, checkString(str));
-
-  String stringMatch(String str) {
-    var match = firstMatch(str);
-    return match === null ? null : match.group(0);
-  }
-
-  Iterable<Match> allMatches(String str) {
-    checkString(str);
-    return new _AllMatchesIterable(this, str);
-  }
-
-  _getNative() => regExpGetNative(this);
-}
-
-class MatchImplementation implements Match {
-  const MatchImplementation(
-      String this.pattern,
-      String this.str,
-      int this._start,
-      int this._end,
-      List<String> this._groups);
-
-  final String pattern;
-  final String str;
-  final int _start;
-  final int _end;
-  final List<String> _groups;
-
-  int start() => _start;
-  int end() => _end;
-  String group(int index) => _groups[index];
-  String operator [](int index) => group(index);
-  int groupCount() => _groups.length - 1;
-
-  List<String> groups(List<int> groups) {
-    List<String> out = [];
-    for (int i in groups) {
-      out.add(group(i));
-    }
-    return out;
-  }
-}
-
-class _AllMatchesIterable implements Iterable<Match> {
-  final JSSyntaxRegExp _re;
-  final String _str;
-
-  const _AllMatchesIterable(this._re, this._str);
-
-  Iterator<Match> iterator() => new _AllMatchesIterator(_re, _str);
-}
-
-class _AllMatchesIterator implements Iterator<Match> {
-  final RegExp _re;
-  final String _str;
-  Match _next;
-  bool _done;
-
-  _AllMatchesIterator(JSSyntaxRegExp re, String this._str)
-    : _done = false, _re = new JSSyntaxRegExp._globalVersionOf(re);
-
-  Match next() {
-    if (!hasNext()) {
-      throw const NoMoreElementsException();
-    }
-
-    // _next is set by #hasNext
-    var next = _next;
-    _next = null;
-    return next;
-  }
-
-  bool hasNext() {
-    if (_done) {
-      return false;
-    } else if (_next != null) {
-      return true;
-    }
-
-    _next = _re.firstMatch(_str);
-    if (_next == null) {
-      _done = true;
-      return false;
-    } else {
-      return true;
-    }
-  }
-}
-
 class ReceivePortFactory {
   factory ReceivePort() {
     throw 'factory ReceivePort is not implemented';