Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

mcs/class/corlib/System.IO/FileSystemInfo.NotSupported.cs

@@ -0,0 +1,36 @@
+namespace System.IO
+{
+	partial class FileSystemInfo
+	{
+		protected FileSystemInfo() { }
+		internal void Invalidate() => throw new PlatformNotSupportedException ();
+		internal bool ExistsCore => throw new PlatformNotSupportedException ();
+		internal long LengthCore => throw new PlatformNotSupportedException ();
+		public void Refresh() => throw new PlatformNotSupportedException ();
+		internal string NormalizedPath => throw new PlatformNotSupportedException ();
+		public FileAttributes Attributes
+		{
+			get => throw new PlatformNotSupportedException ();
+			set => throw new PlatformNotSupportedException ();
+		}
+
+		internal DateTimeOffset CreationTimeCore
+		{
+			get => throw new PlatformNotSupportedException ();
+			set => throw new PlatformNotSupportedException ();
+		}
+
+		internal DateTimeOffset LastAccessTimeCore
+		{
+			get => throw new PlatformNotSupportedException ();
+			set => throw new PlatformNotSupportedException ();
+		}
+
+		internal DateTimeOffset LastWriteTimeCore
+		{
+			get => throw new PlatformNotSupportedException ();
+			set => throw new PlatformNotSupportedException ();
+		}
+	}
+
+}