[clang-tools-extra] [clang-tidy] Avoid diagnosing std::array initializations for modernize-use-designated-initializers (PR #134774)

[Carlos Galvez via cfe-commits]

carlosgalvezp wrote:

Actually, it seems to me that `IgnoreSingleElementAggregates` should already be handling this situation. If it doesn't, there's a bug there that should be fixed, instead of patching it for `std::array`?

https://github.com/llvm/llvm-project/pull/134774