[GameplayKit] Improve and simplify the manually bound constructors for GKPath slightly. (#22847)

Improve and simplify the manually bound constructors for GKPath by
using the same pattern we use elsewhere for manually bound constructors.

Author: rolfbjarne

src/GameplayKit/GKPath.cs

@@ -43,6 +43,7 @@ public static GKPath FromPoints (Vector2 [] points, float radius, bool cyclical)
 
 		[DesignatedInitializer]
 		public GKPath (Vector2 [] points, float radius, bool cyclical)
+			: base (NSObjectFlag.Empty)
 		{
 			if (points is null)
 				ObjCRuntime.ThrowHelper.ThrowArgumentNullException (nameof (points));
@@ -51,7 +52,7 @@ public GKPath (Vector2 [] points, float radius, bool cyclical)
 			try {
 				PrepareBuffer (out buffer, ref points);
 
-				Handle = InitWithPoints (buffer, (nuint) points.Length, radius, cyclical);
+				InitializeHandle (_InitWithPoints (buffer, (nuint) points.Length, radius, cyclical), "initWithPoints:count:radius:cyclical:");
 			} finally {
 				if (buffer != IntPtr.Zero)
 					Marshal.FreeHGlobal (buffer);
@@ -87,6 +88,7 @@ public static GKPath FromPoints (Vector3 [] points, float radius, bool cyclical)
 		[SupportedOSPlatform ("maccatalyst")]
 #endif
 		public GKPath (Vector3 [] points, float radius, bool cyclical)
+			: base (NSObjectFlag.Empty)
 		{
 			if (points is null)
 				ObjCRuntime.ThrowHelper.ThrowArgumentNullException (nameof (points));
@@ -95,7 +97,7 @@ public GKPath (Vector3 [] points, float radius, bool cyclical)
 			try {
 				PrepareBuffer (out buffer, ref points);
 
-				Handle = InitWithFloat3Points (buffer, (nuint) points.Length, radius, cyclical);
+				InitializeHandle (_InitWithFloat3Points (buffer, (nuint) points.Length, radius, cyclical), "initWithFloat3Points:count:radius:cyclical:");
 			} finally {
 				if (buffer != IntPtr.Zero)
 					Marshal.FreeHGlobal (buffer);

src/gameplaykit.cs

@@ -1184,7 +1184,7 @@ interface GKPath {
 
 		[Internal]
 		[Export ("initWithPoints:count:radius:cyclical:")]
-		IntPtr InitWithPoints (IntPtr points, nuint count, float radius, bool cyclical);
+		IntPtr _InitWithPoints (IntPtr points, nuint count, float radius, bool cyclical);
 
 		[MacCatalyst (13, 1)]
 		[Static, Internal]
@@ -1194,7 +1194,7 @@ interface GKPath {
 		[MacCatalyst (13, 1)]
 		[Internal]
 		[Export ("initWithFloat3Points:count:radius:cyclical:")]
-		IntPtr InitWithFloat3Points (IntPtr points, nuint count, float radius, bool cyclical);
+		IntPtr _InitWithFloat3Points (IntPtr points, nuint count, float radius, bool cyclical);
 
 		[Static]
 		[Export ("pathWithGraphNodes:radius:")]

tests/cecil-tests/ConstructorTest.KnownFailures.cs

@@ -21,8 +21,6 @@ public partial class ConstructorTest {
 			"Foundation.NSObject::.ctor(ObjCRuntime.NativeHandle,System.Boolean)",
 			"Foundation.NSSynchronizationContextDispatcher::.ctor(System.Threading.SendOrPostCallback,System.Object)",
 			"Foundation.NSTimerActionDispatcher::.ctor(System.Action`1<Foundation.NSTimer>)",
-			"GameplayKit.GKPath::.ctor(System.Numerics.Vector2[],System.Single,System.Boolean)",
-			"GameplayKit.GKPath::.ctor(System.Numerics.Vector3[],System.Single,System.Boolean)",
 			"HomeKit.HMMatterHome::.ctor(Foundation.NSCoder)",
 			"HomeKit.HMMatterHome::.ctor(Foundation.NSObjectFlag)",
 			"HomeKit.HMMatterHome::.ctor(Foundation.NSUuid,System.String)",

tests/cecil-tests/SetHandleTest.KnownFailures.cs

@@ -15,8 +15,6 @@ public partial class SetHandleTest {
 			"CoreGraphics.CGPattern::.ctor(CoreGraphics.CGRect,CoreGraphics.CGAffineTransform,System.Runtime.InteropServices.NFloat,System.Runtime.InteropServices.NFloat,CoreGraphics.CGPatternTiling,System.Boolean,CoreGraphics.CGPattern/DrawPattern)",
 			"Foundation.NSKeyedUnarchiver::.ctor(Foundation.NSData)",
 			"Foundation.NSUuid::.ctor(System.Byte[])",
-			"GameplayKit.GKPath::.ctor(System.Numerics.Vector2[],System.Single,System.Boolean)",
-			"GameplayKit.GKPath::.ctor(System.Numerics.Vector3[],System.Single,System.Boolean)",
 			"ObjCRuntime.Runtime::RegisterNSObject(Foundation.NSObject,System.IntPtr)",
 			"ScreenCaptureKit.SCContentFilter::.ctor(ScreenCaptureKit.SCDisplay,ScreenCaptureKit.SCRunningApplication[],ScreenCaptureKit.SCWindow[],ScreenCaptureKit.SCContentFilterOption)",
 			"ScreenCaptureKit.SCContentFilter::.ctor(ScreenCaptureKit.SCDisplay,ScreenCaptureKit.SCWindow[],ScreenCaptureKit.SCContentFilterOption)",