syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"self.requires_unsafe(expr.span,"}]}
source_snippet:                     self.requires_unsafe(expr.span, CallToUnsafeFunction(func_id));
context_before:                     };
context_after:                 } else if let &ty::FnDef(func_did, _) = fn_ty.kind() {