Add option to suppress type-check whitelisting

pkg/dev_compiler/tool/input_sdk/private/regexp_helper.dart

 // 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.
 
 part of dart._js_helper;
 
 // Helper method used by internal libraries.
 regExpGetNative(JSSyntaxRegExp regexp) => regexp._nativeRegExp;
 
+List<String> _stringList(List l) => l == null ? l : JS('', 'dart.list(#, #)', l, String);
+
 /**
  * Returns a native version of the RegExp with the global flag set.
  *
  * The RegExp's `lastIndex` property is zero when it is returned.
  *
  * The returned regexp is shared, and its `lastIndex` property may be
  * modified by other uses, so the returned regexp must be used immediately
  * when it's returned, with no user-provided code run in between.
  */
 regExpGetGlobalNative(JSSyntaxRegExp regexp) {
@@ skipping 78 matching lines @@
         '})()', source, m, i, g);
     if (JS('bool', '# instanceof RegExp', regexp)) return regexp;
     // The returned value is the JavaScript exception. Turn it into a
     // Dart exception.
     String errorMessage = JS('String', r'String(#)', regexp);
     throw new FormatException(
         "Illegal RegExp pattern: $source, $errorMessage");
   }
 
   Match firstMatch(String string) {
-    List<String> m = JS('JSExtendableArray|Null',
+    List m = JS('JSExtendableArray|Null',
                         r'#.exec(#)',
                         _nativeRegExp,
                         checkString(string));
     if (m == null) return null;
-    return new _MatchImplementation(this, m);
+    return new _MatchImplementation(this, _stringList(m));
   }
 
   bool hasMatch(String string) {
     return JS('bool', r'#.test(#)', _nativeRegExp, checkString(string));
   }
 
   String stringMatch(String string) {
     var match = firstMatch(string);
     if (match != null) return match.group(0);
     return null;
   }
 
   Iterable<Match> allMatches(String string, [int start = 0]) {
     checkString(string);
     checkInt(start);
     if (start < 0 || start > string.length) {
       throw new RangeError.range(start, 0, string.length);
     }
     return new _AllMatchesIterable(this, string, start);
   }
 
   Match _execGlobal(String string, int start) {
     Object regexp = _nativeGlobalVersion;
     JS("void", "#.lastIndex = #", regexp, start);
     List match = JS("JSExtendableArray|Null", "#.exec(#)", regexp, string);
     if (match == null) return null;
-    return new _MatchImplementation(this, match);
+    return new _MatchImplementation(this, _stringList(match));
   }
 
   Match _execAnchored(String string, int start) {
     Object regexp = _nativeAnchoredVersion;
     JS("void", "#.lastIndex = #", regexp, start);
     List match = JS("JSExtendableArray|Null", "#.exec(#)", regexp, string);
     if (match == null) return null;
     // If the last capture group participated, the original regexp did not
     // match at the start position.
     if (match[match.length - 1] != null) return null;
     match.length -= 1;
-    return new _MatchImplementation(this, match);
+    return new _MatchImplementation(this, _stringList(match));
   }
 
   Match matchAsPrefix(String string, [int start = 0]) {
     if (start < 0 || start > string.length) {
       throw new RangeError.range(start, 0, string.length);
     }
     return _execAnchored(string, start);
   }
 
   bool get isMultiLine => _isMultiLine;
@@ skipping 65 matching lines @@
     _current = null;
     _string = null;  // Marks iteration as ended.
     return false;
   }
 }
 
 /** Find the first match of [regExp] in [string] at or after [start]. */
 Match firstMatchAfter(JSSyntaxRegExp regExp, String string, int start) {
   return regExp._execGlobal(string, start);
 }