Deprecate Math object in corelib in favor of dart:math library.

runtime/bin/stream_util.dart

Index: runtime/bin/stream_util.dart
diff --git a/runtime/bin/stream_util.dart b/runtime/bin/stream_util.dart
index c6d62b6538b9764f07d090812769e1f102bff8e3..3433bde5384e3633cee8f91e1d26fbec8767e6a6 100644
--- a/runtime/bin/stream_util.dart
+++ b/runtime/bin/stream_util.dart
@@ -27,7 +27,7 @@ class _BaseDataInputStream {
     if (len === null) len = buffer.length;
     if (offset < 0) throw new StreamException("Illegal offset $offset");
     if (len < 0) throw new StreamException("Illegal length $len");
-    int bytesToRead = Math.min(len, available());
+    int bytesToRead = min(len, available());
     return _readInto(buffer, offset, bytesToRead);
   }