Compare CodeType by Identification.

[JonathanxD]

In 442908e we introduced a identification property (It broke backward compatibility), the identification property fixed a lot of comparison issues, but a lot of comparison codes remains using the old object comparison (see Identity class). The identification property always have the correct identification, no matter the structure of the CodeType, the purpose is to switch all comparsion codes (and hashCode methods) to identification comparison (and hash).

A lot of comparison tests should be write to make sure that the identification will be always consistent. #