[PATCH] D29157: [libc++] Make _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS export members

[Eric Fiselier via Phabricator via cfe-commits]

EricWF accepted this revision.
EricWF added a comment.
This revision is now accepted and ready to land.

LGTM, but with a macro other than `_LIBCPP_HIDDEN`.

Also could you please add doc explaining the rational for this new macro in depth. I think the summary for this revision would be sufficient.


https://reviews.llvm.org/D29157