syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if t.outer_exclusive_binder() < self.binder_index
context_before:     fn visit_ty(&mut self, t: I::Ty) -> Self::Result {
context_after:             || !self.visited.insert((self.binder_index, t))