Function rustc_infer::infer::error_reporting::nice_region_error::suggest_new_region_bound

pub fn suggest_new_region_bound(
    tcx: TyCtxt<'_>, 
    err: &mut DiagnosticBuilder<'_>, 
    fn_returns: Vec<&Ty<'_>>, 
    lifetime_name: String, 
    arg: Option<String>, 
    captures: String, 
    param: Option<(Span, String)>
)