[clang-tools-extra] [clang-doc] Avoid merging into default Info types (PR #191644)

[Erick Velez via cfe-commits]

evelez7 wrote:

@ilovepi is this patch still needed? From your summary it seems like this was made to address the Darwin problems, but that was addressed.

https://github.com/llvm/llvm-project/pull/191644