Switch from PhpResolveResult#create to PsiElementResolveResult#createResults

[neuro159]

This is quick and straightforward change.
We dropping this intermediate non-open class in 2016.3, EAP starts Sep 1 '16
Target platform method exists since 2010, only a year after we made ours )
3 of your plugins (Symfony, annotations, shopware) are only external users of this class.

[Haehnchen]

thx, all plugins updated