RequirementMachine: Make getTypeForSymbolRange() more robust when asserts are off
RequirementMachine: Make getTypeForSymbolRange() more robust when asserts are off

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