// methodReference.getSignature().equals("#M#C\\Symfony\\Component\\OptionsResolver\\OptionsResolverInterface.setDefaults")
if(PhpElementsUtil.isEqualMethodReferenceName(methodReference, "setDefaults")) {
PsiElement[] parameters = methodReference.getParameters();
if(parameters.length > 0 && parameters[0] instanceof ArrayCreationExpression) {
for(String key: PhpElementsUtil.getArrayCreationKeys((ArrayCreationExpression) parameters[0])) {
options.put(key, new FormOption(key, formClass));
}
}
}