[PATCH] D89559: PR47372: Fix Lambda invoker calling conventions

[Richard Smith - zygoloid via Phabricator via cfe-commits]

rsmith added a comment.

In D89559#2339206 <https://reviews.llvm.org/D89559#2339206>, @erichkeane wrote:

> Since the work is 99% the same, I think I should start doing that (emitting BOTH in the case where it matches the default member but NOT the default free function CC) in this review, then do a separate commit for the MSVC compat mode where we emit a version for ALL of the calling conventions.

You'll also need an overload resolution tiebreaker to ensure that `+[]{}` and the like are not ill-formed due to ambiguity.


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