{"ast_node_type":"function","tokens":[{"end":63,"kind":"keyword","start":0,"text":"pub(crate)"}]}
    pub(crate) fn buffer_error(&mut self, diag: Diag<'infcx>) {
impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> {
        self.diags_buffer.buffered_diags.push(BufferedDiag::Error(diag));