Rewrite regress_7191 to avoid changing stream subscription.

tests/standalone/io/regress_7191_test.dart

Index: tests/standalone/io/regress_7191_test.dart
diff --git a/tests/standalone/io/regress_7191_test.dart b/tests/standalone/io/regress_7191_test.dart
index 3d46cfa2baa49266966ab892ae254c67fee7cd71..6ce1e36b8a598a689f6c9f7c96a7ce337ce123a5 100644
--- a/tests/standalone/io/regress_7191_test.dart
+++ b/tests/standalone/io/regress_7191_test.dart
@@ -20,8 +20,8 @@ main() {
   var script = scriptDir.append('regress_7191_script.dart').toNativePath();
   Process.start(executable, [script]).then((process) {
     process.stdin.writeBytes([0]);
-      process.stdout.listen((_) { },
-                            onDone: () { process.stdin.writeBytes([0]); });
+    process.stdout.listen((_) { },
+                           onDone: () { process.stdin.writeBytes([0]); });
     process.stderr.listen((_) { });
     process.exitCode.then((exitCode) => port.close());

[Mads Ager (google), 2013/04/10 06:10:38]

We should add verification of the exitCode here. That would have caught this
issue because the exit code of the script was non-zero.

Anders, could you add that?

[Anders Johnsen, 2013/04/10 11:41:32]

Yep, done in https://codereview.chromium.org/13851008.

   });