Add Stdio.readByteSync and Stdio.readLineSync.

tests/standalone/io/stdin_sync_script.dart

+// Copyright (c) 2013, 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.
+
+import "dart:io";
+
+void main() {
+  int i = 0;
+  String line;
+  while ((line = stdin.readLineSync()) != null) {
+    switch (i) {
+      case 0:
+        if (line != 'hej\x01\x00\r\n') throw "bad line at $i";

[Bill Hesse, 2013/07/02 11:31:54]

No non-ascii tests?  Can we do a non-default UTF-8, and a non-ascii char, since
we are piping to the stdin anyway?

Should we also make the encoder throw, and test that we get the exception?

[Anders Johnsen, 2013/07/02 12:21:27]

Added non-ascii test. The exception will not happen due to replacement char.

+        break;
+
+      case 1:
+        if (line != '\n') throw "bad line at $i";
+        break;
+
+      case 2:
+        if (line != '4\n') throw "bad line at $i";
+        break;
+    }
+    i++;
+  }
+  if (i != 3 ) throw "expect 3 lines";
+  print('true');
+}