{"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"impl<'a,"}]}
impl<'a, 'gcc, 'tcx> Builder<'a, 'gcc, 'tcx> {
    fn with_cx(cx: &'a CodegenCx<'gcc, 'tcx>, block: Block<'gcc>) -> Self {