syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // backward dataflow analyses, but probably not enough to matter.
context_before:             // Reverse post-order on the reverse CFG may generate a better iteration order for
context_after:             for (bb, _) in traversal::postorder(body) {