DOMDocument::load() can be called statically
DOMDocument::load() can be called statically

fixes https://github.com/peachpiecompiler/peachpie/issues/385

iolevel/peachpie-concept,iolevel/peachpie,peachpiecompiler/peachpie,iolevel/peachpie,peachpiecompiler/peachpie,iolevel/peachpie-concept,peachpiecompiler/peachpie,iolevel/peachpie,iolevel/peachpie-concept