This inspection reports GWT module descriptors which have <source> or
<super-source> elements but does not have <source path='client'> element. This is usually a mistake
because the 'client' subpackage is implicitly added to the source path only when there are no <source> or <super-source> elements.
Also this inspection reports GWT module descriptors which have <public> elements but does not have <public path='public'> element.