syntax_data: {"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":".instantiate_supertrait(cx,"}]}
source_snippet:                             .instantiate_supertrait(cx, bound_clause.rebind(data.trait_ref)),
context_before:                             .to_host_effect_clause(cx, data.constness)
context_after:                     )