}{{
		// Both S1 and S2 have a field named X. From the perspective of S,
		// it is ambiguous which one X refers to.
		// This should not serialize either field.
		CaseName: Name("AmbiguousField"),
		makeInput: func() any {
			type (
				S1 struct{ x, X int }
				S2 struct{ x, X int }
				S  struct {
					S1
					S2
				}
			)
			return S{S1{1, 2}, S2{3, 4}}
		},