Allow Windows network share paths for the script path and the package root.

tests/standalone/io/test_extension_test.dart

Index: tests/standalone/io/test_extension_test.dart
diff --git a/tests/standalone/io/test_extension_test.dart b/tests/standalone/io/test_extension_test.dart
index 8d359776aea7e4be41dcff4099a2d606ec865d5a..0f032339949b66929e01393eb0a33c67a3b1985f 100644
--- a/tests/standalone/io/test_extension_test.dart
+++ b/tests/standalone/io/test_extension_test.dart
@@ -56,6 +56,13 @@ void main() {
     var script = join(testDirectory, 'test_extension_tester.dart');
     return Process.run(Platform.executable, [script]);
   })..then((ProcessResult result) {
+    if (result.exitCode != 0) {

[Søren Gjesse, 2013/11/04 16:15:58]

Debug print.

[Bill Hesse, 2013/11/05 08:52:23]

This is not debug printing, but output of the subprocess stdout and stderr in
the case of a test failure, as we do with other subprocess tests.

+      print('Subprocess failed with exit code ${result.exitCode}');
+      print('stdout:');
+      print('${result.stdout}');
+      print('stderr:');
+      print('${result.stderr}');
+    }
     Expect.equals(0, result.exitCode);
     tempDirectory.deleteSync(recursive: true);
   })..catchError((_) {