syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"fixed_temps:"}]}
source_snippet:     fixed_temps: FxHashMap<ExprId, Local>,
context_before:     /// with an or-pattern are only created once.
context_after:     /// Scope of temporaries that should be deduplicated using [Self::fixed_temps].