[PATCH] D136554: Implement CWG2631

[Tom Honermann via Phabricator via cfe-commits]

tahonermann added a comment.

> There is a bug with default parameter in blocks so that can't be tested

Block expressions don't actually support default arguments due to the type erasure that is fundamental to how they are implemented. Clang should diagnose default arguments in block expressions but doesn't currently (https://github.com/llvm/llvm-project/issues/58173).


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https://reviews.llvm.org/D136554