[macro] make Context.getType return `null` for unknown types because that's how it's documented
[macro] make Context.getType return `null` for unknown types because that's how it's documented

pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe