Throw exception if path can't be watched.

runtime/bin/file_patch.dart

Index: runtime/bin/file_patch.dart
diff --git a/runtime/bin/file_patch.dart b/runtime/bin/file_patch.dart
index ea121f28904320486e36e22a5805f023933c9d51..9c135fdf150979dd5aa6e8e7b4b20e47870cd279 100644
--- a/runtime/bin/file_patch.dart
+++ b/runtime/bin/file_patch.dart
@@ -78,6 +78,7 @@ class _FileSystemWatcherImpl
           _path,
           e);
     }
+    print(socketId);

[zra, 2013/09/24 20:08:11]

Is this a leftover debug print?

[Anders Johnsen, 2013/09/24 20:12:31]

Heh, yep, too fast a fix :)

     var socket = new _RawSocket(new _NativeSocket.watch(socketId));
     _subscription = socket.expand((event) {
       var events = [];