[clang] [clang-tools-extra] [CodeCompletion] Consider header files without extension, if... (PR #166447)

[Corentin Jabot via cfe-commits]

cor3ntin wrote:

> I feel like that’s reasonable; I’m not too familiar w/ the code completion part of Clang so I’ll leave it to someone else to approve this, but it should probably come w/ a release note

It feels like a fairly large hammer, and I don't know often that structure exists in the wild.

https://github.com/llvm/llvm-project/pull/166447