Fixed an issue where the `Range` type in "https://github.com/restsharp/RestSharp/blob/dev/src/RestSharp/Polyfills/Range.cs" could not be decompiled correctly after adjusting the judgment logic of the primary constructor.

ICSharpCode.Decompiler/CSharp/Transforms/TransformFieldAndConstructorInitializers.cs

@@ -233,6 +233,11 @@ namespace ICSharpCode.Decompiler.CSharp.Transforms
 					if (v?.Kind == IL.VariableKind.Parameter)
 					{
 						isStructPrimaryCtor = record?.PrimaryConstructor != null;
+						if (!isStructPrimaryCtor)
+						{
+							// When there is no primary constructor, assignments from constructor parameters to fields or properties cannot be transferred.
+							break;
+						}
 						if (fieldOrPropertyOrEvent is IField f)
 							fieldToVariableMap.Add(f, v);
 					}