syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // We take care to preserve the relative ordering of candidates, so that
context_before:         // Expand one level of or-patterns for each candidate in `candidates_to_expand`.
context_after:         // or-patterns are expanded in their parent's relative position.