react to swift change 'Switch the TargetMachine back...'
react to swift change 'Switch the TargetMachine back...'

This change fixes the broken build for
swift commit 8e3151f451d84a707b3c0baa6c17aa5c6343eff1

apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb