{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"///"}]}
/// This seems to give better results for code that uses macros.
/// function body, truncate it to just the macro name plus `!`.
fn shrink_visible_macro_spans(tcx: TyCtxt<'_>, covspans: &mut Vec<SpanFromMir>) {