[PATCH] D66945: [clang-tidy] Fix a false positive in unused-using-decl check.

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
hokein added a reviewer: gribozavr.
Herald added a subscriber: xazax.hun.
Herald added a project: clang.

The previous matcher "hasAnyTemplateArgument(templateArgument())" only
matches the first template argument, but the check wants to iterate all
template arguments. This patch fixes this.

Also some refactorings in this patch (to make the code reusable).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D66945

Files:
  clang-tools-extra/clang-tidy/misc/UnusedUsingDeclsCheck.cpp
  clang-tools-extra/test/clang-tidy/misc-unused-using-decls.cpp

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