{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"//"}]}
                    // We don't want to show the nonexistent fields error when this was
                if let Err(e) = self.error_tuple_variant_as_struct_pat(pat, fields, variant) {
                    // `Foo { a, b }` when it should have been `Foo(a, b)`.