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

lib/utf/utf16.dart

Index: lib/utf/utf16.dart
diff --git a/lib/utf/utf16.dart b/lib/utf/utf16.dart
index 680e4d2a36ea0a61f091b0b937b74dde57bbd81b..21cd23dd095c3320bb9acde9e761b5d7eaa137ae 100644
--- a/lib/utf/utf16.dart
+++ b/lib/utf/utf16.dart
@@ -217,8 +217,7 @@ class IterableUtf16Decoder implements Iterable<int> {
   final Function codeunitsProvider;

[Siggi Cherem (dart-lang), 2012/10/04 00:09:11]

I was thinking of maybe adding a typedef for this field's type (to match what
was there before in the ctor)?

The other file didn't seem that have that precise signature, but maybe they both
should?

[Jacob, 2012/10/04 00:44:10]

Added a couple typedefs.  The Utf16 and Utf32 cases seem kinda inconsistent at
the moment but I haven't examined the code carefully enough to be sure.
On 2012/10/04 00:09:11, sigmund wrote:

   final int replacementCodepoint;
 
-  IterableUtf16Decoder._(_ListRangeIterator this.codeunitsProvider(),
-      int this.replacementCodepoint);
+  IterableUtf16Decoder._(this.codeunitsProvider, this.replacementCodepoint);
 
   Utf16CodeUnitDecoder iterator() =>
       new Utf16CodeUnitDecoder.fromListRangeIterator(codeunitsProvider(),
@@ -235,8 +234,7 @@ class Utf16BytesToCodeUnitsDecoder implements _ListRangeIterator {
   final int replacementCodepoint;
 
   Utf16BytesToCodeUnitsDecoder._fromListRangeIterator(
-      _ListRangeIterator this.utf16EncodedBytesIterator,
-      int this.replacementCodepoint);
+      this.utf16EncodedBytesIterator, this.replacementCodepoint);
 
   factory Utf16BytesToCodeUnitsDecoder(List<int> utf16EncodedBytes, [
       int offset = 0, int length,