[clang] [Clang] Re-analyze parenthesized aggregate mem-initializers on instantiation (PR #224918)

[Eli Friedman via cfe-commits]

efriedma-quic wrote:

Does this also fix https://github.com/llvm/llvm-project/issues/189005 / https://github.com/llvm/llvm-project/issues/213284 ?

https://github.com/llvm/llvm-project/pull/224918