Allow instantiation of cross-compiled defstructs.
Allow instantiation of cross-compiled defstructs.

AugustusHuang/Mezzano,rvedam/Mezzano,froggey/Mezzano,AugustusHuang/Mezzano,froggey/Mezzano,varjagg/Mezzano,rvedam/Mezzano,varjagg/Mezzano