syntax_data: {"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"&&"}]}
source_snippet:                 && self.tcx.is_builtin_derived(impl_def_id)
context_before:             if let Some(impl_def_id) = self.tcx.impl_of_assoc(def_id)
context_after:             {