[clang] [Clang] Correctly propagate type aliases' unexpanded flags up to lambda (PR #122875)

[Younan Zhang via cfe-commits]

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@@ -810,7 +810,7 @@ Bug Fixes to C++ Support
   module imports in those situations. (#GH60336)
 - Fix init-capture packs having a size of one before being instantiated. (#GH63677)
 - Clang now preserves the unexpanded flag in a lambda transform used for pack expansion. (#GH56852), (#GH85667),
-  (#GH99877).
+  (#GH99877), (#GH122417).
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zyn0217 wrote:

Nothing wrong with that, this is just another case falling into that entry - we should have fixed this one in that PR :)

https://github.com/llvm/llvm-project/pull/122875