Missed a few casts during Swift 3 migration (#182)

Author: loudnate

Loop/Managers/WatchDataManager.swift

@@ -39,7 +39,7 @@ final class WatchDataManager: NSObject, WCSessionDelegate {
 
     @objc private func updateWatch(_ notification: Notification) {
         guard
-            let rawContext = (notification as NSNotification).userInfo?[LoopDataManager.LoopUpdateContextKey] as? LoopDataManager.LoopUpdateContext.RawValue,
+            let rawContext = notification.userInfo?[LoopDataManager.LoopUpdateContextKey] as? LoopDataManager.LoopUpdateContext.RawValue,
             let context = LoopDataManager.LoopUpdateContext(rawValue: rawContext),
             case .tempBasal = context,
             let session = watchSession

Loop/View Controllers/PredictionTableViewController.swift

@@ -119,7 +119,7 @@ class PredictionTableViewController: UITableViewController, IdentifiableClass {
             var components = DateComponents()
             components.minute = 0
             let date = Date(timeIntervalSinceNow: -TimeInterval(hours: 1))
-            charts.startDate = (calendar as NSCalendar).nextDate(after: date, matching: components, options: [.matchStrictly, .searchBackwards]) ?? date
+            charts.startDate = calendar.nextDate(after: date, matching: components, matchingPolicy: .strict, direction: .backward) ?? date
 
             let reloadGroup = DispatchGroup()
             var glucoseUnit: HKUnit?

Loop/View Controllers/StatusTableViewController.swift

@@ -134,12 +134,12 @@ final class StatusTableViewController: UITableViewController, UIGestureRecognize
             var components = DateComponents()
             components.minute = 0
             let date = Date(timeIntervalSinceNow: -TimeInterval(hours: 6))
-            charts.startDate = (calendar as NSCalendar).nextDate(after: date, matching: components, options: [.matchStrictly, .searchBackwards]) ?? date
+            charts.startDate = calendar.nextDate(after: date, matching: components, matchingPolicy: .strict, direction: .backward) ?? date
             charts.glucoseDisplayRange = (
                 min: HKQuantity(unit: HKUnit.milligramsPerDeciliterUnit(), doubleValue: 75),
                 max: HKQuantity(unit: HKUnit.milligramsPerDeciliterUnit(), doubleValue: 225)
             )
-            
+
             let reloadGroup = DispatchGroup()
             var glucoseUnit: HKUnit?