[clang-tools-extra] [clangd] Re-land "support outgoing calls in call hierarchy" (PR #117673)

[kadir çetinkaya via cfe-commits]

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@@ -36,7 +36,8 @@ class Dex : public SymbolIndex {
 public:
   // All data must outlive this index.
   template <typename SymbolRange, typename RefsRange, typename RelationsRange>
-  Dex(SymbolRange &&Symbols, RefsRange &&Refs, RelationsRange &&Relations)
+  Dex(SymbolRange &&Symbols, RefsRange &&Refs, RelationsRange &&Relations,
+      bool SupportContainedRefs = true)
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kadircet wrote:

again the default

https://github.com/llvm/llvm-project/pull/117673