Fix missing semicolon.

pkg/compiler/lib/src/js_emitter/class_stub_generator.dart

Index: pkg/compiler/lib/src/js_emitter/class_stub_generator.dart
diff --git a/pkg/compiler/lib/src/js_emitter/class_stub_generator.dart b/pkg/compiler/lib/src/js_emitter/class_stub_generator.dart
index 5f40300504b208af7cedc70a4d8a8a0041b8bf9d..bad586ec69d128566c963e1f3ab7e804cc9fa24b 100644
--- a/pkg/compiler/lib/src/js_emitter/class_stub_generator.dart
+++ b/pkg/compiler/lib/src/js_emitter/class_stub_generator.dart
@@ -41,7 +41,7 @@ class ClassStubGenerator {
     var typeInits = const <jsAst.Expression>[];
     if (hasRtiField) {
       var rtiName = namer.rtiFieldJsName;
-      typeParameters = rtiName
+      typeParameters = rtiName;
       typeInits = js('this.# = #', [rtiName, rtiName]);
     }
     return js('function(#, #) { #; #; this.#();}', [