syntax_data: {"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:             if candidate.false_edge_start_block.is_none() {
context_before:             // In addition, if `candidate` doesn't have `false_edge_start_block`, it should be assigned here.
context_after:                 candidate.false_edge_start_block = false_edge_start_block;