ptr:      new(map[Point]string),
		err:      &UnmarshalTypeError{Value: "object", Type: reflect.TypeFor[map[Point]string](), Offset: 1},
	},
	{
		CaseName: Name(""),
		in:       `{"asdf": "hello world"}`,
		ptr:      new(map[unmarshaler]string),
		err:      &UnmarshalTypeError{Value: "object", Type: reflect.TypeFor[map[unmarshaler]string](), Offset: 1},
	},

	// related to issue 13783.