[display] @type not working on extern function declarations

[Gama11]

class Main {
	static function main() {}
}

extern class Foo {
	/** some docs **/
	var foo:Int;

	/** some docs **/
	function bar():Void;
}

@type doesn't work on the names of extern function declarations:

> haxe --display Main.hx@135@type
Error: No completion point was found

At the same time, on variables it somehow works fine:

> haxe --display Main.hx@94@type
<type p="..\main.hx:7: characters 6-9" d=" some docs ">
Int
</type>

Works fine on usages of foo too.

[nadako]

What I could figure out so far is that the display check is done in the bind_type callback, which is not called because fctx.do_bind is false.