ECheckType regression

[Gama11]

Input file

class Main {
	static function main() {
		__bytePointer.set(#if flash byteArray #else (byteArray : ByteArrayData) #end, byteArray.position);
	}
}

Broken output

class Main {
	static function main() {
		__bytePointer.set(#if flash byteArray #else (byteArray:ByteArrayData) #end, byteArray.position);
	}
}

Also from the OpenFL diff: openfl/openfl@7c8c271#diff-4e6c8750cc974fa188aae75a05eb3714R645