[PATCH] D147925: [Clang] Check type-constraints applied to placeholder types

[Corentin Jabot via Phabricator via cfe-commits]

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(and deduced return types)

Previously, only type constraints applied to type parameter
were semantically checked.

A diagnostic would still be emitted on instantiation, but it was
too late, lacked clarity, and was inconsistent with type parameters.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D147925

Files:
  clang/docs/ReleaseNotes.rst
  clang/include/clang/Sema/Sema.h
  clang/lib/Parse/ParseDecl.cpp
  clang/lib/Sema/SemaTemplate.cpp
  clang/test/Parser/cxx2a-placeholder-type-constraint.cpp

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