NoData and Unit

[Aidan63]

There is already a NoData type in haxe.display.protocol, would these two be unified at some point? When using the import missing types feature in vscode and if I'm not paying too much attention, I've often clicked the wrong NoData type which results in confusing "expected NoData, found NoData errors".
This could also all be replaced with the pending Unit type once merged. HaxeFoundation/haxe#11563