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

sdk/lib/utf/utf_core.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.utf;
 
 // TODO(jmesserly): would be nice to have this on String (dartbug.com/6501).
 /**
  * Provide a list of Unicode codepoints for a given string.
  */
@@ skipping 46 matching lines @@
         (value > UNICODE_UTF16_RESERVED_HI && value <= UNICODE_PLANE_ONE_MAX)) {
       encodedLength++;
     } else if (value > UNICODE_PLANE_ONE_MAX &&
         value <= UNICODE_VALID_RANGE_MAX) {
       encodedLength += 2;
     } else {
       encodedLength++;
     }
   }
 
-  List<int> codeUnitsBuffer = new List<int>.fixedLength(encodedLength);
+  List<int> codeUnitsBuffer = new List<int>(encodedLength);
   int j = 0;
   for (int value in listRange) {
     if ((value >= 0 && value < UNICODE_UTF16_RESERVED_LO) ||
         (value > UNICODE_UTF16_RESERVED_HI && value <= UNICODE_PLANE_ONE_MAX)) {
       codeUnitsBuffer[j++] = value;
     } else if (value > UNICODE_PLANE_ONE_MAX &&
         value <= UNICODE_VALID_RANGE_MAX) {
       int base = value - UNICODE_UTF16_OFFSET;
       codeUnitsBuffer[j++] = UNICODE_UTF16_SURROGATE_UNIT_0_BASE +
           ((base & UNICODE_UTF16_HI_MASK) >> 10);
@@ skipping 11 matching lines @@
 /**
  * Decodes the utf16 codeunits to codepoints.
  */
 List<int> _utf16CodeUnitsToCodepoints(
     List<int> utf16CodeUnits, [int offset = 0, int length,
     int replacementCodepoint = UNICODE_REPLACEMENT_CHARACTER_CODEPOINT]) {
   _ListRangeIterator source =
       (new _ListRange(utf16CodeUnits, offset, length)).iterator;
   Utf16CodeUnitDecoder decoder = new Utf16CodeUnitDecoder
       .fromListRangeIterator(source, replacementCodepoint);
-  List<int> codepoints = new List<int>.fixedLength(source.remaining);
+  List<int> codepoints = new List<int>(source.remaining);
   int i = 0;
   while (decoder.moveNext()) {
     codepoints[i++] = decoder.current;
   }
   if (i == codepoints.length) {
     return codepoints;
   } else {
-    List<int> codepointTrunc = new List<int>.fixedLength(i);
+    List<int> codepointTrunc = new List<int>(i);
     codepointTrunc.setRange(0, i, codepoints);
     return codepointTrunc;
   }
 }
 
 /**
  * An Iterator<int> of codepoints built on an Iterator of UTF-16 code units.
  * The parameters can override the default Unicode replacement character. Set
  * the replacementCharacter to null to throw an ArgumentError
  * rather than replace the bad value.
@@ skipping 130 matching lines @@
     _offset -= by;
   }
 
   int get remaining => _end - _offset - 1;
 
   void skip([int count = 1]) {
     _offset += count;
   }
 }