[clangd] Fix implicit template instatiations appearing as topLevelDecls.
Summary: The parser gives implicit template instantiations to the action's HandleTopLevelDecls callback. This makes semantic highlighting highlight these templated functions multiple times. Fixed by filtering on if a Decl is an implicit function/variable/class instantiation. Also added a testcase to semantic highlighting on this.
Reviewers: hokein, ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65510
git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@368261 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed
