syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"ret.insert(Self::BASIC_BLOCK_OFFSET"}]}
source_snippet:         ret.insert(Self::BASIC_BLOCK_OFFSET + bb.index());
context_before:         let mut ret = self.bottom_value(self.body);
context_after:         ret