test: avoid windows path separators in test
test: avoid windows path separators in test

Use the POSIX path separators for the test, a subsequent change will add
an explicit test for windows path separators when fixing the JSON
emission.

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