Workarounds for SE-0072 transition.

Banning the String-to-NSString conversion unfortunately also bans the transitive String-to-NSString-to-NSSTRING_ENUM conversion without an intervening NSString conversion. Work around this until we can get a fix into the compiler.

Author: jckarter

PlaygroundSupport/PlaygroundSupport/PlaygroundPage.swift

@@ -50,7 +50,7 @@ public final class PlaygroundPage {
     ///
     public var needsIndefiniteExecution: Bool = false {
         didSet {
-            NotificationCenter.default.post(name: "PlaygroundPageNeedsIndefiniteExecutionDidChangeNotification" as NSNotification.Name, object: self, userInfo: [ AnyHashable("PlaygroundPageNeedsIndefiniteExecution") : needsIndefiniteExecution as AnyObject])
+            NotificationCenter.default.post(name: "PlaygroundPageNeedsIndefiniteExecutionDidChangeNotification" as NSString as NSNotification.Name, object: self, userInfo: [ AnyHashable("PlaygroundPageNeedsIndefiniteExecution") : needsIndefiniteExecution as AnyObject])
         }
     }
 
@@ -59,7 +59,7 @@ public final class PlaygroundPage {
     /// This method does not return, as Xcode will kill the process hosting playground execution when this method is called.
     public func finishExecution() -> Never {
         // Send a message to Xcode requesting that we be killed.
-        NotificationCenter.default.post(name: "PlaygroundPageFinishExecutionNotification" as NSNotification.Name, object: self, userInfo: nil)
+        NotificationCenter.default.post(name: "PlaygroundPageFinishExecutionNotification" as NSString as NSNotification.Name, object: self, userInfo: nil)
 
         // Sleep for a while to let Xcode kill us.
         for _ in 1...10 {
@@ -102,7 +102,7 @@ public final class PlaygroundPage {
                 userInfo = [:]
             }
 
-            NotificationCenter.default.post(name: "PlaygroundPageLiveViewDidChangeNotification" as NSNotification.Name, object: self, userInfo: userInfo)
+            NotificationCenter.default.post(name: "PlaygroundPageLiveViewDidChangeNotification" as NSString as NSNotification.Name, object: self, userInfo: userInfo)
         }
     }
 }

PlaygroundSupport/XCPlayground/XCPlaygroundPage.swift

@@ -45,7 +45,7 @@ public final class XCPlaygroundPage {
     /// - note: This function has been deprecated. 
     @available(*,deprecated) public func captureValue<T>(value: T, withIdentifier identifier: String) {
         if let value = value as? AnyObject {
-            NotificationCenter.default.post(name: "XCPCaptureValue" as NSNotification.Name, object: self, userInfo: [ AnyHashable("value") : value, AnyHashable("identifier"): identifier as AnyObject])
+            NotificationCenter.default.post(name: "XCPCaptureValue" as NSString as NSNotification.Name, object: self, userInfo: [ AnyHashable("value") : value, AnyHashable("identifier"): identifier as AnyObject])
         }
     }
 
@@ -62,7 +62,7 @@ public final class XCPlaygroundPage {
     @available(*,deprecated,message:"Use 'PlaygroundPage.current.needsIndefiniteExecution' from the 'PlaygroundSupport' module instead")
     public var needsIndefiniteExecution: Bool = false {
         didSet {
-            NotificationCenter.default.post(name: "XCPlaygroundPageNeedsIndefiniteExecutionDidChangeNotification" as NSNotification.Name, object: self, userInfo: [ AnyHashable("XCPlaygroundPageNeedsIndefiniteExecution") : needsIndefiniteExecution as AnyObject])
+            NotificationCenter.default.post(name: "XCPlaygroundPageNeedsIndefiniteExecutionDidChangeNotification" as NSString as NSNotification.Name, object: self, userInfo: [ AnyHashable("XCPlaygroundPageNeedsIndefiniteExecution") : needsIndefiniteExecution as AnyObject])
         }
     }
 
@@ -72,7 +72,7 @@ public final class XCPlaygroundPage {
     @available(*,deprecated,message:"Use 'PlaygroundPage.current.finishExecution()' from the 'PlaygroundSupport' module instead")
     public func finishExecution() -> Never {
         // Send a message to Xcode requesting that we be killed.
-        NotificationCenter.default.post(name: "XCPlaygroundPageFinishExecutionNotification" as NSNotification.Name, object: self, userInfo: nil)
+        NotificationCenter.default.post(name: "XCPlaygroundPageFinishExecutionNotification" as NSString as NSNotification.Name, object: self, userInfo: nil)
 
         // Sleep for a while to let Xcode kill us.
         for _ in 1...10 {
@@ -116,7 +116,7 @@ public final class XCPlaygroundPage {
                 userInfo = [:]
             }
 
-            NotificationCenter.default.post(name: "XCPlaygroundPageLiveViewDidChangeNotification" as NSNotification.Name, object: self, userInfo: userInfo)
+            NotificationCenter.default.post(name: "XCPlaygroundPageLiveViewDidChangeNotification" as NSString as NSNotification.Name, object: self, userInfo: userInfo)
         }
     }
 }