PhpStan does not understand the backed value of enums #8828
Description
Bug report
It seems that phpstan does not know that self::Foo->value in the below example is a string.
The enum is string backed, while phpstan thinks the value could be string|int
Code snippet that reproduces the problem
https://phpstan.org/r/ad018c7e-3eb6-4b13-ae38-254707335b82
PHPDoc tag @var for constant AStringBackedEnum::ZIP_CODE_MAPPING with type array<string, array<int, string>> is incompatible with value non-empty-array<int|string, 'yeah'>.
Expected output
No error
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