Error when stubbing a property that does not exist

[DanKaplanSES]

I'd like a more informative error message for this situation:

        const x = {
            getFoo: () => {
                return "bar"
            }
        }

        sinon.stub(x, 'getFoo').value("baz");

        console.log(x.getFoo()); // TypeError: x.getFoo is not a function
        console.log(typeof x.getFoo); // string

The intent here was to stub x's getFoo method, but the user mistakenly used value to do so. In this situation, it would be more helpful for sinon to error on the stub line with an error message similar to: "x.getFoo is a function, not a getter. Use returns instead of value."

I'm aware this is a breaking change, so I think the user would need to configure some sort of "strict mode" to enable an error message like this.