[idea] reactor to migrate from the deprecated constants of \Doctrine\DBAL\Types\Type

[stof]

Doctrine DBAL 2.10 is deprecating the constants in the \Doctrine\DBAL\Types\Type abstract class in favor of equivalent constants in \Doctrine\DBAL\Types\Types (most constants have the same name, but a few of the date-related types have _MUTABLE added in the constant name to make them symmetric with the _IMMUTABLE date types);

Diff

 use Doctrine\DBAL\Types\Type;
+use Doctrine\DBAL\Types\Type;

-$query->setParameter($a, Type::BOOLEAN);
-$query->setParameter($b, Type::DATE);
+$query->setParameter($a, Types::BOOLEAN);
+$query->setParameter($b, Types::DATE_MUTABLE);

Removing the existing use statement for Doctrine\DBAL\Types\Type might a nice bonus, but it requires to be careful (as it could be used for other things than referencing constants), and PHP-CS-Fixer can already be used to clean that after the migration anyway.

[TomasVotruba]

I overlooked this issues, just getting to it now.

I wonder if it would be more useful to cover whole https://github.com/doctrine/dbal/blob/master/UPGRADE.md, where possible

[TomasVotruba]

It's very hard to deduce migration path from the upgrade file, as FQN classes are missing and wording is often ambiguous. Diff examples would be more helpful.

I've started first set at #2514
I'd be happy if you check it and fix/complete, if you find a way