[PATCH] D65591: [AST] Add a flag indicating if any subexpression had errors

[Ilya Biryukov via Phabricator via cfe-commits]

ilya-biryukov added a comment.

I did some experiments with adding something similar to the `ErrorExpr` Aaron suggest. It has this flag set and does not get removed from the AST.
I believe the best way to address Aaron's comments is to add tests mentioning this expression instead of trying to catch `TypoExpr`, which normally get removed from the AST.

Would need some time to fix a few remaining test failures (bogus diagnostics), I'll update this patch when I have something (hopefully tomorrow).


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D65591/new/

https://reviews.llvm.org/D65591