Function rustc_builtin_macros::deriving::partial_ord::expand_deriving_partial_ord

pub fn expand_deriving_partial_ord(
    cx: &mut ExtCtxt<'_>,
    span: Span,
    mitem: &MetaItem,
    item: &Annotatable,
    push: &mut dyn FnMut(Annotatable),
    is_const: bool
)