Function type_chewer_nty

pub const fn type_chewer_nty<const MAX: usize>(
    nty: &NamedType,
) -> ([Option<&NamedType>; MAX], usize)

This function collects the set of unique types, reporting the entire list (which might only be partially used), as well as the used length.

The parameter MAX should be the highest possible number of unique types, if NONE of the types have any duplication. This should be calculated using unique_types_nty_upper(). This upper bound allows us to pre-allocate enough storage for the collection process.