Adjust expected output in ILPretty tests

ICSharpCode.Decompiler.Tests/TestCases/ILPretty/CS1xSwitch_Debug.cs

@@ -270,7 +270,7 @@ namespace ICSharpCode.Decompiler.Tests.TestCases.Pretty
 
 		public static string SwitchOverBool(bool b)
 		{
-			Console.WriteLine("SwitchOverBool: " + b.ToString());
+			Console.WriteLine("SwitchOverBool: " + b);
 			switch (b) {
 				case true:
 					return bool.TrueString;

ICSharpCode.Decompiler.Tests/TestCases/ILPretty/CS1xSwitch_Release.cs

@@ -270,7 +270,7 @@ namespace ICSharpCode.Decompiler.Tests.TestCases.Pretty
 
 		public static string SwitchOverBool(bool b)
 		{
-			Console.WriteLine("SwitchOverBool: " + b.ToString());
+			Console.WriteLine("SwitchOverBool: " + b);
 			switch (b) {
 				case true:
 					return bool.TrueString;

ICSharpCode.Decompiler.Tests/TestCases/ILPretty/FSharpUsing_Debug.cs

@@ -36,7 +36,7 @@ public static class FSharpUsingPatterns
 			num = fileStream.ReadByte();
 		}
 		int num2 = num;
-		Console.WriteLine("read:" + num2.ToString());
+		Console.WriteLine("read:" + num2);
 	}
 
 	public static void sample5()

ICSharpCode.Decompiler.Tests/TestCases/ILPretty/FSharpUsing_Release.cs

@@ -36,7 +36,7 @@ public static class FSharpUsingPatterns
 			num = fileStream.ReadByte();
 		}
 		int num2 = num;
-		Console.WriteLine("read:" + num2.ToString());
+		Console.WriteLine("read:" + num2);
 	}
 
 	public static void sample5()