syntax_data: {"ast_node_type":"other","tokens":[{"end":109,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // In addition, if `candidate` doesn't have `false_edge_start_block`, it should be assigned here.
context_before:             candidate.otherwise_block = Some(next_block);
context_after:             if candidate.false_edge_start_block.is_none() {