Allow resolving forwards and exported types in non-ECMA assemblies (#1598)
Allow resolving forwards and exported types in non-ECMA assemblies (#1598)

This is really something I should have done in #1582, but I didn't look
at the whole file.
shrah/corert,kyulee1/corert,yizhang82/corert,krytarowski/corert,krytarowski/corert,yizhang82/corert,sandreenko/corert,gregkalapos/corert,yizhang82/corert,shrah/corert,krytarowski/corert,kyulee1/corert,yizhang82/corert,botaberg/corert,sandreenko/corert,shrah/corert,gregkalapos/corert,sandreenko/corert,krytarowski/corert,sandreenko/corert,botaberg/corert,tijoytom/corert,tijoytom/corert,shrah/corert,tijoytom/corert,kyulee1/corert,botaberg/corert,gregkalapos/corert,gregkalapos/corert,botaberg/corert,tijoytom/corert,kyulee1/corert