fn collect_annotations(
args: &DiagArgMap,
msp: &MultiSpan,
sm: &Arc<SourceMap>,
) -> Vec<(Arc<SourceFile>, Vec<Annotation>)>fn collect_annotations(
args: &DiagArgMap,
msp: &MultiSpan,
sm: &Arc<SourceMap>,
) -> Vec<(Arc<SourceFile>, Vec<Annotation>)>