fix ClassTypeAlias extends

lib/runtime/dart/_internal.js

Index: lib/runtime/dart/_internal.js
diff --git a/lib/runtime/dart/_internal.js b/lib/runtime/dart/_internal.js
index 93a6f7d8951b993d0db3a749072c7419bb699234..920035b6ee989ec9fd25c6a2988f22bf74f47d42 100644
--- a/lib/runtime/dart/_internal.js
+++ b/lib/runtime/dart/_internal.js
@@ -1383,12 +1383,12 @@ var _internal;
   });
   let UnmodifiableListMixin = UnmodifiableListMixin$();
   let FixedLengthListBase$ = dart.generic(function(E) {
-    class FixedLengthListBase extends dart.mixin(FixedLengthListMixin$(E)) {}
+    class FixedLengthListBase extends dart.mixin(collection.ListBase$(E), FixedLengthListMixin$(E)) {}
     return FixedLengthListBase;
   });
   let FixedLengthListBase = FixedLengthListBase$();
   let UnmodifiableListBase$ = dart.generic(function(E) {
-    class UnmodifiableListBase extends dart.mixin(UnmodifiableListMixin$(E)) {}
+    class UnmodifiableListBase extends dart.mixin(collection.ListBase$(E), UnmodifiableListMixin$(E)) {}
     return UnmodifiableListBase;
   });
   let UnmodifiableListBase = UnmodifiableListBase$();