[PATCH] D140894: [clang-tidy] Don't emit misc-unused-using-decl warnings for header files.

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
hokein added a reviewer: ymandel.
Herald added subscribers: carlosgalvezp, xazax.hun.
Herald added a reviewer: njames93.
Herald added a project: All.
hokein requested review of this revision.
Herald added a project: clang-tools-extra.

Using decls in header files are special, usually as part of the
public API, the check should not emit warnings on these.

The check already detects unused using-decls which are in the current main
file, but if the main file happens to be a header file, we still
emit warnings, this patch suppresses that.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D140894

Files:
  clang-tools-extra/clang-tidy/misc/UnusedUsingDeclsCheck.cpp
  clang-tools-extra/clang-tidy/misc/UnusedUsingDeclsCheck.h
  clang-tools-extra/docs/clang-tidy/checks/misc/unused-using-decls.rst
  clang-tools-extra/test/clang-tidy/checkers/misc/unused-using-decls.hxx

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