respect `from_c`; skip Array constructor

[vilterp]

Stacked on #46

~Skipped Array constructor so that there are edges directly from the functions that allocate arrays to the array types.~

EDIT(NHD): I'm going to leave this part out for now; we can always add it back in if we can't figure out a better, more general solution

[vilterp]

Thanks, yeah the Array thing was kind of a hack. I think including type arguments is a better way to fix this.