syntax_data: {"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"self.is_poly"}]}
source_snippet:         self.is_poly |= self.expr_is_poly(expr);
context_before:     fn visit_expr(&mut self, expr: &'a thir::Expr<'tcx>) {
context_after:         if !self.is_poly {