Make std* blocking file-descriptors.

sdk/lib/io/stdio.dart

Index: sdk/lib/io/stdio.dart
diff --git a/sdk/lib/io/stdio.dart b/sdk/lib/io/stdio.dart
index 5c1fa8f734fa04146c3194a2744b3a468a0e7e67..44cb06891597380bed01b24dc46cfd011f27c6a6 100644
--- a/sdk/lib/io/stdio.dart
+++ b/sdk/lib/io/stdio.dart
@@ -273,8 +273,12 @@ IOSink get stderr {
 StdioType stdioType(object) {
   if (object is _StdStream) {
     object = object._stream;
-  } else if (object is _StdSink) {
-    object = object._sink;
+  } else if (object == stdout || object == stderr) {
+    switch (_getStdioHandleType(object == stdout ? 1 : 2)) {

[Søren Gjesse, 2014/02/07 11:05:11]

Use the STDOUT_FILENO and STDERR_FILENO constants here instead of 1 and 2.

[Anders Johnsen, 2014/02/14 08:43:28]

They are not available in Dart.

+      case _STDIO_HANDLE_TYPE_TERMINAL: return StdioType.TERMINAL;
+      case _STDIO_HANDLE_TYPE_PIPE: return StdioType.PIPE;
+      case _STDIO_HANDLE_TYPE_FILE:  return StdioType.FILE;
+    }
   }
   if (object is _FileStream) {
     return StdioType.FILE;