Just about every time I set up a new `Context.Provider`, I end up accidentally specifying a `values` prop rather than `value`.  While it's a minor error, generally I build the container in which the provider resides and commit it to the code base before I ever use it.  It's only later when I go to use it that I realize I did it again.  Since the `Context.Provider` seems pretty much useless without a `value` prop specified, I'd love it if there was a prop error if it is missing... especially if another prop is defined on the `Context.Provider` instead.
)}
                </FooConsumer>
              </FooContext.Provider>
            </BarContext.Provider>
            <FooConsumer>
              {({value}) => <Verify actual={value} expected="foo-initial" />}
            </FooConsumer>
            <BarConsumer>
              {({value}) => <Verify actual={value} expected="bar-initial" />}
            </BarConsumer>
          </>,
        );
        expect(Scheduler).toFlushWithoutYielding();
      });
      it('multiple consumers in different branches', () => {
        const Context = React.createContext(1);
        const Consumer = getConsumer(Context);
        function Provider(props) {
          return (
            <Context.Consumer>
              {contextValue => (
                
                <Context.Provider value={props.value || contextValue * 2}>
                  {props.children}
                </Context.Provider>
              )}
            </Context.Consumer>
          );
        }
        class Indirection extends React.Component {