Semantic tokens forall function hide under type syn is not recognized

[soulomoon]

Current implmentation is does expand type synoym for type from the in memory hieAst.

So the forall function hide under type syn is not recognized

1. T1 type syn is expanded since isFunType check so.
2. T2 is not, since the check only expand forall.

It result in forall hide behide type syn is not expanded