[PATCH] D56936: Fix handling of overriden methods during ASTImport

[Gabor Marton via Phabricator via cfe-commits]

martong added a comment.

> So the problem is that there are references to ParmVarDecl from inside function body and at import of ParmVarDecl always a new one is created even if there is an already existing (in the existing function prototype)?

Yes. During the import of the body we import a `DeclRefExpr` which refers to a `ParmVarDecl` but not the existing one, thus a new is created.

> Maybe it works in VisitParmVarDecl to search for already existing ParmVarDecl (not already imported) and return if found.

Yes it would worth to try, indeed.


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  https://reviews.llvm.org/D56936/new/

https://reviews.llvm.org/D56936