[libcxx-commits] [libcxx] [libc++] Make `<set>` `std::set` constexpr as part of P3372R3 (PR #167241)

[A. Jiang via libcxx-commits]

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frederick-vs-ja wrote:

```suggestion
constexpr void test_invoke_set_like() {
```

https://github.com/llvm/llvm-project/pull/167241