[move-function] Add dwarfdump filecheck tests that show that if we have a var, we get the debug info that we expect.
[move-function] Add dwarfdump filecheck tests that show that if we have a var, we get the debug info that we expect.

I already had tests that validated we got the corret IR. This tests that from
the debug info perspective, we have sane output.

roambotics/swift,JGiola/swift,gregomni/swift,rudkx/swift,atrick/swift,rudkx/swift,ahoppen/swift,benlangmuir/swift,gregomni/swift,roambotics/swift,apple/swift,gregomni/swift,JGiola/swift,atrick/swift,benlangmuir/swift,glessard/swift,benlangmuir/swift,glessard/swift,roambotics/swift,gregomni/swift,gregomni/swift,benlangmuir/swift,ahoppen/swift,gregomni/swift,glessard/swift,atrick/swift,rudkx/swift,JGiola/swift,rudkx/swift,JGiola/swift,apple/swift,roambotics/swift,roambotics/swift,apple/swift,apple/swift,benlangmuir/swift,glessard/swift,atrick/swift,rudkx/swift,apple/swift,glessard/swift,ahoppen/swift,ahoppen/swift,apple/swift,roambotics/swift,rudkx/swift,atrick/swift,benlangmuir/swift,ahoppen/swift,atrick/swift,JGiola/swift,glessard/swift,JGiola/swift,ahoppen/swift