{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"debug_assert!(self.shallow_resolve(a)"}]}
        debug_assert!(self.shallow_resolve(a) == a);
        debug!("coerce_from_fn_item(a={:?}, b={:?})", a, b);
        debug_assert!(self.shallow_resolve(b) == b);