syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"hir::MatchSource::AwaitDesugar"}]}
source_snippet:             hir::MatchSource::AwaitDesugar | hir::MatchSource::TryDesugar(_) => {}
context_before:             // the arms are an uninhabited type. Which is OK.
context_after:         }