Change new List(n) to return fixed length list.

runtime/lib/string_base.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.
 
 /**
  * [_StringBase] contains common methods used by concrete String
  * implementations, e.g., _OneByteString.
  */
 class _StringBase {
 
@@ skipping 329 matching lines @@
     return buffer.toString();
   }
 
 
   /**
    * Convert all objects in [values] to strings and concat them
    * into a result string.
    */
   static String _interpolate(List values) {
     int numValues = values.length;
-    var stringList = new List.fixedLength(numValues);
+    var stringList = new _ObjectArray(numValues);

[floitsch, 2013/02/26 13:54:19]

new List(numValues) doesn't work?

[Lasse Reichstein Nielsen, 2013/02/26 15:26:00]

It didn't at some point, probably before I changed the constructor-recognition
in the VM.

     for (int i = 0; i < numValues; i++) {
       stringList[i] = values[i].toString();
     }
     return _concatAll(stringList);
   }
 
   Iterable<Match> allMatches(String str) {
     List<Match> result = new List<Match>();
     int length = str.length;
     int patternLength = this.length;
@@ skipping 241 matching lines @@
     for (int g in groups) {
       result.add(group(g));
     }
     return result;
   }
 
   final int start;
   final String str;
   final String pattern;
 }