syntax_data: {"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"self.add_bound_var(debruijn);"}]}
source_snippet:                 self.add_bound_var(debruijn);
context_before:             ty::Bound(debruijn, _) => {
context_after:                 self.add_flags(TypeFlags::HAS_TY_BOUND);