[clang-tools-extra] Symbol tags in SymbolInformation, WorkspaceSymbol, CallHierarchyItem and TypeHierarchyItem (PR #170103)

[via cfe-commits]

timon-ul wrote:

@ratzdi you requested a review but you did not undo the changes we talked about? `SymbolTags` is still a class. Unless I misunderstood you.

https://github.com/llvm/llvm-project/pull/170103