[PATCH] D130585: [Sema] Return primary merged decl as canonical for concepts

[Ilya Biryukov via Phabricator via cfe-commits]

ilya-biryukov added a comment.

I wonder whether the right fix for this should generalize to `Mergeable<T>`.
The fact that `Mergeable::getFirstDecl` checks if the decl is coming from the AST file before looking up its primary merged decl is probably a performance optimization, not a deliberate semantic.


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  https://reviews.llvm.org/D130585/new/

https://reviews.llvm.org/D130585