bug: Sized types tries registering on top of generic sized types

[Zffu]

Test Code

func main() {
	var s8 normal = 1;
	var s16 normal16 = 1;
	var s32 normal32 = 1;
	var s64 normal64 = 1;
	var s128 normal128 = 1;

	var f16 float = normal;

	var s.37 normal37 = normal;	
}

Found behavior

The s.37 type tries to register onto the s "hash" type entry instead of the s37 type hash. This should register with a custom hash of for example, the type hash itself instead of the s hash