{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"//"}]}
                // Do not report duplicate errors for `x = y` and `match x { ... }`.
            hir::ExprKind::Assign(_, rhs, _) | hir::ExprKind::Match(rhs, ..) => {
                if self.check_expr_pat_type(rhs.hir_id, rhs.span) {