[PATCH] D146156: [clang][Lexer] Fix crash/assert clang::HeaderSearch::search_dir_nth

[Dmitry Polukhin via Phabricator via cfe-commits]

DmitryPolukhin added a comment.

In D146156#4197289 <https://reviews.llvm.org/D146156#4197289>, @shafik wrote:

> Is there a way to test this?

It was easier to reproduce on small test case than I thought, test added.


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