Arc - when evaluating parameter type information, handle primitive arrays properly

[manovotn]

This is a minor oversight from previous.
Related to this comment - #21781 (comment)

[stuartwdouglas]

It's not just arrays that are the issue, public types from outside application archives can also trigger this: #21901

IMHO the warning is unnecessary, as any private type would be in the same index. Any private type outside the current jar would not be accessible at compile time anyway.

[mkouba]

IMHO the warning is unnecessary, as any private type would be in the same index. Any private type outside the current jar would not be accessible at compile time anyway.

This check is not only about private types but package-private types as well.