C++: Tag transparent binding contour

[Gabriel Dos Reis]

Jason Merrill <jason@redhat.com> writes:

| > The only place, in the C++ front-end, where a tag-transparent binding
| > contour is created in maybe_push_cleanup_level, where I think it is
| > unnecessary.  Comments?
| 
| Well, if we're in the middle of a block and we want to push a new binding
| level in order to support cleanup semantics, we don't want that binding
| level to interfere with name lookup.  But I don't see how that would be
| different for tags vs. other names.  Indeed, since C++ doesn't have
| separate name spaces for tags and decls, having any special handling of
| tags doesn't make a lot of sense.

Thank you.  Is it OK to describe the binding contour created by
maybe_push_cleanup_level as just a bare sk_block?  Or do you think it
is necessary to introduce a separate scope_kind enumerator? (I would
say sk_block is sufficient),

-- Gaby