syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Scope of temporaries that should be deduplicated using [Self::fixed_temps].
context_before:     fixed_temps: FxHashMap<ExprId, Local>,
context_after:     fixed_temps_scope: Option<region::Scope>,