[clang] [Clang] fix confusing diagnostics for lambdas with init-captures inside braced initializers (PR #166180)

[Oleksandr T. via cfe-commits]

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@@ -772,9 +772,10 @@ bool Parser::ParseLambdaIntroducer(LambdaIntroducer &Intro,
 
   // Produce a diagnostic if we're not tentatively parsing; otherwise track
   // that our parse has failed.
-  auto Invalid = [&](llvm::function_ref<void()> Action) {
+  auto Result = [&](llvm::function_ref<void()> Action,
+                    LambdaIntroducerTentativeParse State) {
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a-tarasyuk wrote:

@cor3ntin thanks for the feedback. Updated to use the default value

https://github.com/llvm/llvm-project/pull/166180