[PATCH] D74116: [Sema][C++] Strawman patch to propagate conversion type in order to specialize the diagnostics

[John McCall via Phabricator via cfe-commits]

rjmccall added a comment.

This shouldn't be an expensive function call, and being a little inefficient on the error path to get better diagnostics is a good trade-off.


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https://reviews.llvm.org/D74116