Segfault/Access Violation when calling local function made with Reflect.makeVarArgs in another function

[NotHyper-474]

Haxe 4.3.6
HashLink 1.14.0
Repro code: https://try.haxe.org/#F21Ca171
If I explicitly mark func as Dynamic it works without issues.
Other targets work as expected.

I also noticed that on Windows it'll throw an error instead.

source/Main.hx:7: Haxe is great!
Uncaught exception: Access violation
Called from $Main.testFunc(Main.hx:17)
Called from $Main.main(Main.hx:13)
Called from .init(?:1)

[yuxiaomao]

I confirm that I can repro with your example with latest hashlink.

I note the example here just in case:

class Main {
	static function main() {
		var func = function(args:Array<Dynamic>):Void {
			trace("Haxe is great!");
		};

		var f2 /*: Dynamic*/ = Reflect.makeVarArgs(func);
		f2([]); // Works as expected
		testFunc(f2);
	}

	static function testFunc(func:Dynamic) {
		func([]); // Segfaults if f2 is not type explicitly as Dynamic
	}
}

[NotHyper-474]

Interestingly your example also only fails if f2([]); is present.

[yuxiaomao]

It segfault for hl/c and hl/jit.
It also only fails if :Dynamic is present in testFunc(func:Dynamic). And will not fail if it's Dynamic->Void either.
Seems to be caused by f2's type, it's typed as Array<Dyn>->Void (caused by f2([])) and passed as Dyn, and hashlink somehow don't like it. I'll see if I can find some fix.