syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"DesugaringKind::YeetExpr"}]}
source_snippet:             DesugaringKind::YeetExpr => "`do yeet` expression",
context_before:             DesugaringKind::TryBlock => "`try` block",
context_after:             DesugaringKind::OpaqueTy => "`impl Trait`",