syntax_data: {"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:     if tcx.has_attr(def_id, sym::rustc_intrinsic) {
context_before:     // accidentally inline the body of an intrinsic that *must* be overridden.
context_after:         return Err("callee is an intrinsic");