{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"if"}]}
            if blk.rules == ast::BlockCheckMode::Unsafe(ast::UserProvided) {
            // Don't warn about generated blocks; that'll just pollute the output.
                self.report_unsafe(cx, blk.span, BuiltinUnsafe::UnsafeBlock);