[PATCH] D102026: Thread safety analysis: Allow exlusive/shared joins for managed and asserted capabilities

[Aaron Puchert via Phabricator via cfe-commits]

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Similar to how we allow managed and asserted locks to be held and not
held in joining branches, we also allow them to be held shared and
exclusive. The scoped lock should restore the original state at the end
of the scope in any event, and asserted locks need not be released.

We should probably only allow asserted locks to be subsumed by managed,
not by (directly) acquired locks, but that's for another change.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102026

Files:
  clang/lib/Analysis/ThreadSafety.cpp
  clang/test/SemaCXX/warn-thread-safety-analysis.cpp

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