Function rustc_borrowck::diagnostics::mutability_errors::suggest_ampmut

fn suggest_ampmut<'tcx>(
    tcx: TyCtxt<'tcx>, 
    local_decl: &LocalDecl<'tcx>, 
    opt_assignment_rhs_span: Option<Span>, 
    opt_ty_info: Option<Span>
) -> (Span, String)