Commits on Oct 15, 2024

1. [Clang] Instantiate Typedefs referenced by type alias deduction guides ( …

   llvm#111804)
   
   TypedefNameDecl referenced by a synthesized CTAD guide for type aliases
   was not transformed previously, resulting in a substitution failure in
   BuildDeductionGuideForTypeAlias() when substituting into the
   right-hand-side deduction guide.
   
   This patch fixes it in the way we have been doing since
   https://reviews.llvm.org/D80743. We transform all the function
   parameters, parenting referenced TypedefNameDecls with the
   CXXDeductionGuideDecl. Then we instantiate these declarations in
   FindInstantiatedDecl() as we build up the eventual deduction guide,
   using the mechanism introduced in D80743
   
   Fixes llvm#111508
   
   (cherry picked from commit 0bc02b9)

   

   zyn0217 authored and llvmbot committed Oct 15, 2024
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