Bug report

I get unexpected errors for version_compare().

Code snippet that reproduces the problem

https://phpstan.org/r/e09f4ab5-16fa-4be9-a613-1e604986e2bf

Expected output

No errors expected.

• Param 3 can be null
• result can be null for php < 8 when the operator does not exist: https://3v4l.org/3TXPC