This change adds .Add residues of clangd/ to .gitignore. The purpose is to make and ccls to prevent them from being accidentally
sure no one would accidentally include their own workspace leftover into aincluded in a commit.
clangd and ccls are two C/C++ Language Server implementations listed in
commithttps://microsoft.github.io/language-server-protocol/implementors/servers/ .
.clangd is the index file directories of clangd.Sponsored by: The FreeBSD Foundation
MFC after: 3 days