{"ast_node_type":"variable","tokens":[{"end":81,"kind":"keyword","start":0,"text":"let"}]}
        let else_target = current_else.unwrap_or_else(|| self.new_basic_block());
        let then_target = self.new_basic_block();
        let discr: Place = self.temp(TyBuilder::bool(), current, pattern.into())?.into();