{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"cx.emit_span_lint(USES_POWER_ALIGNMENT,"}]}
                    cx.emit_span_lint(USES_POWER_ALIGNMENT, field_def.span, UsesPowerAlignment);
                if self.check_arg_for_power_alignment(cx, ty) {
                }