[libcxx-commits] [libcxx] [libc++] LWG3223 Broken requirements for shared_ptr converting constructors (PR #93071)

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alexfh wrote:

This commit breaks the following code (https://gcc.godbolt.org/z/eoMMr6KjE):
```
    std::shared_ptr<int>(
      new int,
      [](auto pointer) { delete pointer; }
    );
```

Is this intended?

The code compiles fine with libstdc++ and with libc++ before this change.

https://github.com/llvm/llvm-project/pull/93071