Ensure ZILB encoder handles all typed data lists correctly

sdk/lib/io/data_transformer.dart

Index: sdk/lib/io/data_transformer.dart
diff --git a/sdk/lib/io/data_transformer.dart b/sdk/lib/io/data_transformer.dart
index f9f974a8650eb7d3c665744f39854b595f49ca9a..4db93e3cc3e7fb088ccab7e7ccacc5aa8885084c 100644
--- a/sdk/lib/io/data_transformer.dart
+++ b/sdk/lib/io/data_transformer.dart
@@ -491,7 +491,11 @@ class _FilterSink extends ByteConversionSink {
     }

[Lasse Reichstein Nielsen, 2015/10/08 11:26:57]

This could do with updating:
  if (end == null) throw ArgumentError.notNull("end");
  RangeError.checkValidRange(start, end, data.length);

     try {
       _empty = false;
-      _filter.process(data, start, end);
+      _BufferAndStart bufferAndStart =

[Lasse Reichstein Nielsen, 2015/10/08 11:26:57]

Have you considered having _ensureFastAndSerializableByteData return a
Uint8List.view instead, then you don't need an extra class for the result.

+          _ensureFastAndSerializableByteData(data, start, end);
+      _filter.process(bufferAndStart.buffer,
+                      bufferAndStart.start,
+                      end - (start - bufferAndStart.start));
       var out;
       while ((out = _filter.processed(flush: false)) != null) {
         _sink.add(out);