{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"//"}]}
    // just so we don't ICE during instantiation later.
    // First, check a few of the same things as `compare_impl_method`,
    check_method_is_structurally_compatible(tcx, impl_m, trait_m, impl_trait_ref, true)?;