`grpc_session.cpp` includes `data_type_validated.h` to import the `Validator<>` template class, but this class has no generic implementation, and is expected to specialize an implementation later.

When modifying the specialized implementation of `Validator<BSONObj>`, LTO builds caused this function to become inlined. Because `grpc_session.cpp` does not include `object_check.h` explicitly, this specialization is only weakly linked if it is instantiated somewhere else. This is technically an ODR violation, but in practice is a wider issue with how `Validator` is defined (by enforcing checks at link time rather than compile time)