C# records are translated to invalid TypeScript types because of the `<Clone>$` member

[ulrichb]

Given C# code link this:

public class TestClass { public TestRecord Hello() => new TestRecord("x"); }

public record TestRecord(string Value);

... produces TS typing like this:

		export class TestRecord {
			constructor(Value: string);
			Value: string;
			ToString(): string;
			GetHashCode(): number;
			Equals(obj: unknown | undefined): boolean;
			Equals(other: NodeDotNetInterop.TestRecord | undefined): boolean;
			<Clone>$(): NodeDotNetInterop.TestRecord;
			Deconstruct(): { Value: string };
		}

... which is invalid TypeScript: compile error at the <Clone>$() line is "Unexpected token. A constructor, method, accessor, or property was expected".