{"ast_node_type":"other","tokens":[{"end":103,"kind":"keyword","start":0,"text":"//"}]}
        // so we implement a type-based check that reflects the guaranteed rules for ABI compatibility.
        // We do not want to accept things as ABI-compatible that just "happen to be" compatible on the current target,
        if self.layout_compat(caller_abi.layout, callee_abi.layout)? {