syntax_data: {"ast_node_type":"other","tokens":[{"end":7,"kind":"keyword","start":0,"text":"});"}]}
source_snippet:     });
context_before:         defining_opaque_types_and_generators: ty::List::empty(),
context_after:     with_replaced_escaping_bound_vars(&infcx, &mut vec![None], bound_tys, |bound_tys| {