Move JSSyntaxRegExp to core as a private member. This removes the last refrences to dart:coreimpl.

sdk/lib/_internal/compiler/implementation/lib/coreimpl_patch.dart

Index: sdk/lib/_internal/compiler/implementation/lib/coreimpl_patch.dart
diff --git a/sdk/lib/_internal/compiler/implementation/lib/coreimpl_patch.dart b/sdk/lib/_internal/compiler/implementation/lib/coreimpl_patch.dart
deleted file mode 100644
index efddd1c39ba79237bbca2dd9faddd1a3fb465f16..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/compiler/implementation/lib/coreimpl_patch.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2012, 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.
-
-// Patch file for dart:coreimpl classes.
-
-// Patch for RegExp implementation.
-// TODO(ager): Split out into regexp_patch.dart and allow #source in
-// patch files?
-patch class JSSyntaxRegExp {
-  final String _pattern;
-  final bool _multiLine;
-  final bool _ignoreCase;
-
-  patch JSSyntaxRegExp(String pattern,
-                       {bool multiLine: false,
-                        bool ignoreCase: false})
-      : _pattern = pattern,
-        _multiLine = multiLine,
-        _ignoreCase = ignoreCase;
-
-  patch 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);
-  }
-
-  patch bool hasMatch(String str) => regExpTest(this, checkString(str));
-
-  patch String stringMatch(String str) {
-    var match = firstMatch(str);
-    return match == null ? null : match.group(0);
-  }
-
-  patch Iterable<Match> allMatches(String str) {
-    checkString(str);
-    return new _AllMatchesIterable(this, str);
-  }
-
-  patch String get pattern => _pattern;
-  patch bool get multiLine => _multiLine;
-  patch bool get ignoreCase => _ignoreCase;
-
-  static JSSyntaxRegExp _globalVersionOf(JSSyntaxRegExp other) {
-    JSSyntaxRegExp re = new JSSyntaxRegExp(other.pattern,
-                                           multiLine: other.multiLine,
-                                           ignoreCase: other.ignoreCase);
-    regExpAttachGlobalNative(re);
-    return re;
-  }
-
-  _getNative() => regExpGetNative(this);
-}
-
-class _MatchImplementation implements Match {
-  final String pattern;
-  final String str;
-  final int start;
-  final int end;
-  final List<String> _groups;
-
-  const _MatchImplementation(
-      String this.pattern,
-      String this.str,
-      int this.start,
-      int this.end,
-      List<String> this._groups);
-
-  String group(int index) => _groups[index];
-  String operator [](int index) => group(index);
-  int get 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 = JSSyntaxRegExp._globalVersionOf(re);
-
-  Match next() {
-    if (!hasNext) {
-      throw new StateError("No more elements");
-    }
-
-    // _next is set by [hasNext].
-    var next = _next;
-    _next = null;
-    return next;
-  }
-
-  bool get hasNext {
-    if (_done) {
-      return false;
-    } else if (_next != null) {
-      return true;
-    }
-
-    // firstMatch actually acts as nextMatch because of
-    // hidden global flag.
-    _next = _re.firstMatch(_str);
-    if (_next == null) {
-      _done = true;
-      return false;
-    } else {
-      return true;
-    }
-  }
-}