[Vala] flags

[Dominique Würtz <housirer gmx de>]

I discovered a keyword 'flags' in Vala which I'd need for my bindings. I 
did a short test like this:

public flags MyFlags {
 FOO,
 BAR
}

MyFlags x = MyFlags.FOO & MyFlags.BAR;

Vala doesn't find the type name MyFlags. Are flags supposed to be 
supported yet?

Dominique