Revert "Replace object-like array with class"

[greg0ire]

This reverts commit 0d2314ad58928abdfae7c6e328608bb65040079f. Changing the type to a Token is too much of a BC-break: dependent packages can have methods that type hint against array when those methods have a token as a parameter or as a return value. This will have to be contributed to 2.0, verbatim so that there is an upgrade path. For instance, for doctrine/orm, the upgrade path will consist in dropping the type declarations at the following locations:

• https://github.com/doctrine/orm/blob/65da1fe8cb5612c018dd38192f8dd26faad567a5/lib/Doctrine/ORM/Query/Parser.php#L590
• https://github.com/doctrine/orm/blob/65da1fe8cb5612c018dd38192f8dd26faad567a5/lib/Doctrine/ORM/Query/Parser.php#L556