syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// (b) sub-branches of or-patterns, allowing the match-lowering process to handle
context_before: /// Candidates are a generalization of (a) top-level match arms, and
context_after: /// them both in a mostly-uniform way. For example, the list of candidates passed