[PATCH] D55466: Change `tuple_size` from a `class` to a `struct` (see PR#39871)

[Marshall Clow via Phabricator]

mclow.lists added a comment.

In D55466#1347491 <https://reviews.llvm.org/D55466#1347491>, @EricWF wrote:

> Should we commit this before the next release? Maybe ping Wakly to get the editorial fix landed?


I will ping Jonathan about this today.


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https://reviews.llvm.org/D55466