Fix MappingToUnit to support no span of arg_ty#109154

Merged

bors merged 1 commit intorust-lang:masterfrom chenyukang:yukang/fix-109152

Mar 15, 2023

+39-2

Commits on Mar 15, 2023

Fix rust-lang#109152 , fix the scenario that we may can not get span of func
chenyukang
committed