fromDRI
Looks up a QuarkdocEnum from the given DRI.
If the enum is declared in the same module, it will be found in the EnumStorage as a DokkaEnumAdapter.
If the enum is declared in a different module that is present in this classpath (e.g.
core), it will be loaded via reflection as a ReflectionEnumAdapter.
Return
a QuarkdocEnum from the given DRI, or null if it cannot be found.
Parameters
dri
the DRI that points to the enum declaration.