[Php81] Handle crash on Crypt() single arg on NullToStrictStringFuncCallArgRector

[samsonasik]

Given the following code:

final class CryptOneArg
{
    public function run($subject)
    {
        crypt($subject);
    }
}

It currently crash:

There was 1 error:

1) Rector\Tests\Php81\Rector\FuncCall\NullToStrictStringFuncCallArgRector\NullToStrictStringFuncCallArgRectorTest::test with data set #10 (Symplify\SmartFileSystem\SmartFileInfo Object (...))
Undefined array key 1

Fixes rectorphp/rector#7373

[samsonasik]

Fixed 🎉 /cc @petitj . This PR make it skipped instead.

It may need different PR for crypt() single arg transformation, but need different PR with seems require more research since we need to find the equal for transformation for pass 2nd arg that need to be generated salt.

[samsonasik]

Only convert 1st arg is possible actually...

[samsonasik]

Applied to only change 1st arg, 2nd arg will need different rule to apply it.

[samsonasik]

I added comment to the fixture for future reference:

/**
 * Crypt requires 2 args since php 5.6, when it only fill 1st arg, it will only change 1st arg
 *
 * Note: Filling 2nd arg will require different Rule to match the salt algorithm.
 */

50d58e4

[samsonasik]

All checks have passed 🎉 @TomasVotruba it is ready for review.

[TomasVotruba]

Thank you 👍