syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// During match lowering, arms with or-patterns will be expanded into a tree
context_before: /// At the start of match lowering, there is one candidate for each match arm.
context_after: /// of candidates, where each "leaf" candidate represents one of the ways for