extern blocks

crates/libsyntax2/src/grammar/items/mod.rs

@@ -227,6 +227,7 @@ fn extern_item_list(p: &mut Parser) {
     assert!(p.at(L_CURLY));
     let m = p.start();
     p.bump();
+    mod_contents(p, true);
     p.expect(R_CURLY);
     m.complete(p, EXTERN_ITEM_LIST);
 }

crates/libsyntax2/src/lib.rs

@@ -127,7 +127,8 @@ fn validate_block_structure(root: SyntaxNodeRef) {
                     assert_eq!(
                         node.parent(),
                         pair.parent(),
-                        "\nunpaired curleys:\n{}",
+                        "\nunpaired curleys:\n{}\n{}\n",
+                        root.text(),
                         utils::dump_tree(root),
                     );
                     assert!(