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

[Dimitri Ratz via cfe-commits]

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@@ -153,6 +202,63 @@ bool isUniqueDefinition(const NamedDecl *Decl) {
          isa<TemplateTemplateParmDecl>(Decl) || isa<ObjCCategoryDecl>(Decl) ||
          isa<ObjCImplDecl>(Decl);
 }
+
+// Filter symbol tags based on the presence of other tags and the kind of
+// symbol. This is needed to avoid redundant tags, e.g. final implies override,
+// override implies virtual, etc.
+SymbolTags filterSymbolTags(const NamedDecl &ND, const SymbolTags ST) {
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ratzdi wrote:

Clarification is needed.

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