syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if self.universe == ty::UniverseIndex::ROOT {
context_before:     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
context_after:             write!(f, "!{:?}", self.bound)