Fix GH-14873: PHP 8.4 min function fails on typed integer

The problem is that this line in the VM: `ZVAL_NULL(result);` changes the type
of arg1 as well, because after the DFA pass the r

Fix GH-14873: PHP 8.4 min function fails on typed integer

The problem is that this line in the VM: `ZVAL_NULL(result);` changes the type
of arg1 as well, because after the DFA pass the result and input both use
CV0($result).
We should not contract assignments with CVs in frameless calls with
arguments.
An older attempt is found at GH-14876 that tried to modify the VM/JIT.

Closes GH-14903.

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