[all-commits] [llvm/llvm-project] 8bed59: [Lex] Fix suggested spelling of /usr/bin/../includ...

[Sam McCall via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8bed59c7e7da2fea41a9167e15c15a8f58a5ede7
      https://github.com/llvm/llvm-project/commit/8bed59c7e7da2fea41a9167e15c15a8f58a5ede7
  Author: Sam McCall <sam.mccall at gmail.com>
  Date:   2022-11-25 (Fri, 25 Nov 2022)

  Changed paths:
    M clang/lib/Lex/HeaderSearch.cpp
    M clang/unittests/Lex/HeaderSearchTest.cpp

  Log Message:
  -----------
  [Lex] Fix suggested spelling of /usr/bin/../include/foo

Since D60873 we remove dotdots from the search path entries, but not the
filenames we're matching against, so do the latter too.

Since this also removes (single) dots, drop the logic to skip over them.
(Some of this was already dead, some is newly dead).

See D138676 for motivation.

Differential Revision: https://reviews.llvm.org/D138677