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

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https://github.com/timon-ul approved this pull request.

Looks good to me now, @HighCommander4 please have a look next :)

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