{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"fx.bcx.ins().brif(true_,"}]}
            fx.bcx.ins().brif(true_, trap_block, &[], next_block, &[]);
            let next_block = fx.bcx.create_block();
            fx.bcx.seal_block(trap_block);