Fix #3611: Update test cases to reflect original test

Author: siegfriedpammer

ICSharpCode.Decompiler.Tests/TestCases/Pretty/Issue3452.cs

@@ -1,5 +1,3 @@
-#pragma warning disable CS9124
-
 using System;
 
 namespace ICSharpCode.Decompiler.Tests.TestCases.Pretty
@@ -29,7 +27,7 @@ private class C3(StringComparison comparison)
 
 			internal StringComparison Test()
 			{
-				return comparison;
+				return _comparison;
 			}
 		}
 

ICSharpCode.Decompiler.Tests/TestCases/Pretty/Issue3610.cs

@@ -1,5 +1,3 @@
-#pragma warning disable CS9124
-
 using System;
 using System.Collections.Generic;
 
@@ -47,7 +45,7 @@ private abstract class PCFieldInitTest(StringComparison value)
 
 			public bool Func()
 			{
-				return value == StringComparison.Ordinal;
+				return _value == StringComparison.Ordinal;
 			}
 		}