Remove spurious types from constructor args that use "this."

lib/utf/utf8.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.
 
 const int _UTF8_ONE_BYTE_MAX = 0x7f;
 const int _UTF8_TWO_BYTE_MAX = 0x7ff;
 const int _UTF8_THREE_BYTE_MAX = 0xffff;
 
 const int _UTF8_LO_SIX_BIT_MASK = 0x3f;
 
@@ skipping 115 matching lines @@
  * Return type of [decodeUtf8AsIterable] and variants. The Iterable type
  * provides an iterator on demand and the iterator will only translate bytes
  * as requested by the user of the iterator. (Note: results are not cached.)
  */
 class IterableUtf8Decoder implements Iterable<int> {
   final List<int> bytes;
   final int offset;
   final int length;
   final int replacementCodepoint;
 
-  IterableUtf8Decoder(List<int> this.bytes, [int this.offset = 0,
-      int this.length = null,
-      int this.replacementCodepoint = UNICODE_REPLACEMENT_CHARACTER_CODEPOINT]);
+  IterableUtf8Decoder(this.bytes, [this.offset = 0, this.length = null,
+      this.replacementCodepoint = UNICODE_REPLACEMENT_CHARACTER_CODEPOINT]);
 
   Utf8Decoder iterator() => new Utf8Decoder(bytes, offset, length,
           replacementCodepoint);
 }
 
 /**
  * Provides an iterator of Unicode codepoints from UTF-8 encoded bytes. The
  * parameters can set an offset into a list of bytes (as int), limit the length
  * of the values to be decoded, and override the default Unicode replacement
  * character. Set the replacementCharacter to null to throw an
  * ArgumentError rather than replace the bad value. The return value
  * from this method can be used as an Iterable (e.g. in a for-loop).
  */
 class Utf8Decoder implements Iterator<int> {
   final _ListRangeIterator utf8EncodedBytesIterator;
   final int replacementCodepoint;
 
   Utf8Decoder(List<int> utf8EncodedBytes, [int offset = 0, int length,
-      int this.replacementCodepoint =
+      this.replacementCodepoint =
       UNICODE_REPLACEMENT_CHARACTER_CODEPOINT]) :
       utf8EncodedBytesIterator = (new _ListRange(utf8EncodedBytes, offset,
           length)).iterator();
 
 
   Utf8Decoder._fromListRangeIterator(_ListRange source, [
-      int this.replacementCodepoint =
+      this.replacementCodepoint =
       UNICODE_REPLACEMENT_CHARACTER_CODEPOINT]) :
       utf8EncodedBytesIterator = source.iterator();
 
   /** Decode the remaininder of the characters in this decoder
     * into a [List<int>].
     */
   List<int> decodeRest() {
     List<int> codepoints = new List<int>(utf8EncodedBytesIterator.remaining);
     int i = 0;
     while (hasNext()) {
@@ skipping 77 matching lines @@
     if (validSequence && nonOverlong && inRange) {
       return value;
     } else if (replacementCodepoint != null) {
       return replacementCodepoint;
     } else {
       throw new ArgumentError(
           "Invalid UTF8 at ${utf8EncodedBytesIterator.position - j}");
     }
   }
 }