Fix #78650: new COM Crash

As of PHP 7.4.0, the `get_property_ptr_ptr` handler is mandatory; we
implement it to always return `NULL`, which is equivalent to not
setting the handler in

Fix #78650: new COM Crash

As of PHP 7.4.0, the `get_property_ptr_ptr` handler is mandatory; we
implement it to always return `NULL`, which is equivalent to not
setting the handler in former versions.

We add a portable and faster test case than what has been presented in
the bug ticket.

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