syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":")"}]}
source_snippet:                 ) => Ok(ep_a.rebind(ty::ExistentialPredicate::Projection(
context_before:                     ty::ExistentialPredicate::Projection(b),
context_after:                     relation.relate(ep_a.rebind(a), ep_b.rebind(b))?.skip_binder(),