[clang-tools-extra] [clangd] Support outgoing calls in call hierarchy (PR #77556)

[Nathan Ridge via cfe-commits]

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@@ -1700,6 +1700,7 @@ declToHierarchyItem(const NamedDecl &ND, llvm::StringRef TUPath) {
 
   HierarchyItem HI;
   HI.name = printName(Ctx, ND);
+  // FIXME: Populate HI.detail the way we do in symbolToHierarchyItem?
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HighCommander4 wrote:

The difference between `declToHierarchyItem` and `symbolToHierarchyItem` is the former is used for symbols from the AST, and the latter for symbols from the index. They should both ideally produce the same result, but the implementation (and sometimes the amount of detail available in the respective inputs) is different.

https://github.com/llvm/llvm-project/pull/77556