Added handling in no-multi-comp for forwardRef and memo wrapping comp…

[jenil94]

Added handling in no-multi-comp for forwardRef and memo wrapping components declared in the same file.

Fixes #2172

Changes

While checking for isPragmaComponentWrapper code will also check whether the wrapper is wrapping existing component or creating a new one.

If it's is wrapping existing component in extra JSX element then it will be considered as a separate component else it won't.

In the example below the second abc won't be considered as extra component

class StoreListItem extends React.PureComponent {
	// A bunch of stuff here
}
const abc = React.forwardRef((props, ref) => <StoreListItem />)

but in the second case abc will be considered as a separate component

class StoreListItem extends React.PureComponent {
	// A bunch of stuff here
}
const abc = React.forwardRef((props, ref) => <div><StoreListItem /></div>)

[ljharb]

Can you confirm this will fix component detection for any case where a component is passed as the argument to a function?

[ljharb]

Thanks! made some final tweaks to get this in.