[PATCH] D145965: [C++20][Modules] Fix incorrect visibilities in implementation units.

[Iain Sandoe via Phabricator via cfe-commits]

iains added a comment.

in the end, we have to deal with the following cases:

1. decls in the same TU (including GMF and PMF)
2. decls in the current named module (excluding GMF)
3. decls on an instantiation path (which can include internal-linkage entities)
4. decls that are needed by an exported entity from a *differennt" named module [e.g. a module-linkage entity that is used by some exported  content].


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145965/new/

https://reviews.llvm.org/D145965