vhdl-forward-comment
vhdl-forward-comment is an alias for `forward-comment' in `vhdl-mode.el
'.
(vhdl-forward-comment COUNT)
Move forward across up to COUNT comments. If COUNT is negative, move backward.
Stop scanning if we find something other than a comment or whitespace.
Set point to where scanning stops.
If COUNT comments are found as expected, with nothing except whitespace
between them, return t; otherwise return nil.