Records: Exclude static members from copy constructor check

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

@@ -30,6 +30,11 @@ namespace ICSharpCode.Decompiler.Tests.TestCases.Pretty
 
 		public record Empty;
 
+		public record EmptyWithStaticField
+		{
+			public static readonly Empty X = new Empty();
+		}
+
 		public record Fields
 		{
 			public int A;

ICSharpCode.Decompiler/CSharp/RecordDecompiler.cs

@@ -550,7 +550,9 @@ namespace ICSharpCode.Decompiler.CSharp
 			// Then all the fields are copied over
 			foreach (var member in orderedMembers)
 			{
-				if (!(member is IField field))
+				if (member.IsStatic)
+					continue;
+				if (member is not IField field)
 				{
 					if (!autoPropertyToBackingField.TryGetValue((IProperty)member, out field!))
 						continue;