[clang] Don't mark lambda non-dependent if nested in a generic lambda. (PR #149121)

[Younan Zhang via cfe-commits]

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@@ -557,6 +557,7 @@ Bug Fixes to C++ Support
 - Diagnose unresolved overload sets in non-dependent compound requirements. (#GH51246) (#GH97753)
 - Fix a crash when extracting unavailable member type from alias in template deduction. (#GH165560)
 - Fix incorrect diagnostics for lambdas with init-captures inside braced initializers. (#GH163498)
+- Fixed spurious diagnoses of certain nested lambda expressions. (#GH149121)
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zyn0217 wrote:

Nit: it would be nice to mention 156579 too.

https://github.com/llvm/llvm-project/pull/149121