Avoid crashing on enum without value

[VincentLanglet]

Closes phpstan/phpstan#7927

[ondrejmirtes]

I don't want to catch LogicException. The right way to prevent this is to contribute something like hasValueExpression first to https://github.com/ondrejmirtes/BetterReflection to prevent the error.

Please note that contributing to that fork is a bit tricky. The last two commits are always "[GENERATED] Renamed" and "[GENERATED] Downgrading".

You need to start by git reset --hard before these two commits. Then make your changes. Then run make downgrade-inner (and commit that) and make rename-inner (and commit that).

Please note that the CI there isn't green. The library could appreciate some love but given it's only just me working on the fork I didn't prioritize that yet.

[VincentLanglet]

I will need https://github.com/Roave/BetterReflection/releases/tag/6.65.0

[ondrejmirtes]

I actually disagree with merging Roave/BetterReflection#1527 instead of Roave/BetterReflection#1528.

Since hasValueExpression was already added on Roave/BetterReflection#1526 it should have just been added on the adapter as well.

I'll rebase the fork and adjust it to my taste.

[ondrejmirtes]

Updated here.

[VincentLanglet]

Updated here.

Thanks, rebased and updated :)