CallerMemberName works on fields!

CallerMemberName-works-on-fields.cs

using System.Runtime.CompilerServices;

static class Program {
	class Symbol {
		public readonly string DebugName;
		public Symbol([CallerMemberName] string? debugName = null) => DebugName = debugName ?? string.Empty;
	}

	static readonly Symbol TheSymbol = new(); // TheSymbol.DebugName is "TheSymbol"!
}