syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // false edge to the final failure block.
context_before:         // were testing match branches one by one in order. In the refutable case we also want a
context_after:         let mut next_candidate_start_block = if refutable { Some(otherwise_block) } else { None };