[PATCH] D149516: [Sema] `setInvalidDecl` for error deduction declaration

[Congcong Cai via Phabricator via cfe-commits]

HerrCai0907 created this revision.
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Fixed: https://github.com/llvm/llvm-project/issues/62408
`setInvalidDecl` for invalid `CXXDeductionGuideDecl` to
avoid crashes during semantic analysis.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149516

Files:
  clang/include/clang/Sema/Sema.h
  clang/lib/Sema/SemaDecl.cpp
  clang/lib/Sema/SemaDeclCXX.cpp
  clang/test/CXX/expr/expr.prim/expr.prim.req/nested-requirement.cpp
  clang/test/Parser/cxx1z-class-template-argument-deduction.cpp
  clang/test/SemaCXX/invalid-deduction-guide-as-template-candidates.cpp

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