@:using should work on typedefs

[Gama11]

Regular static extensions with on typedefs with using:

using Main.Tools;

class Main {
	static function main() {
		({value: 0} : A).print();
	}
}

typedef A = {value:Int};

class Tools {
	public static function print(a:A) {
		trace(a.value);
	}
}

Consequently, it feels quite inconsistent that this doesn't work with the new @:using metadata:

class Main {
	static function main() {
		({value: 0} : A).print(); // A has no field print
	}
}

@:using(Main.Tools)
typedef A = {value:Int};

class Tools {
	public static function print(a:A) {
		trace(a.value);
	}
}

[Gama11]

#8188