[clang] [clang-tools-extra] [clangd] show lambda name instead of operator() in signature help (PR #101857)

[Younan Zhang via cfe-commits]

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@@ -1139,6 +1139,8 @@ class SignatureHelpCollector final : public CodeCompleteConsumer {
           switch (K) {
           case OC::CK_Aggregate:
             return 0;
+          case OC::CK_Lambda:
+            [[fallthrough]];
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zyn0217 wrote:

```suggestion
```

https://github.com/llvm/llvm-project/pull/101857