{"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"//"}]}
        // even though it's in the "not a heuristic" part of instantiation mode selection.
        // Note that just like above, this check for requires_inline is technically a heuristic
        if !tcx.cross_crate_inlinable(instance.def_id()) && !instance.def.requires_inline(tcx) {