Replace dart_core.js with actual compiled SDK

test/generated_sdk/lib/core/list.dart

Index: test/generated_sdk/lib/core/list.dart
diff --git a/test/generated_sdk/lib/core/list.dart b/test/generated_sdk/lib/core/list.dart
index 24e8eccf6109d04927d32819bef4e69d26f2a807..583d895d5ef111621bb5e7a16e4f5cc7306964ef 100644
--- a/test/generated_sdk/lib/core/list.dart
+++ b/test/generated_sdk/lib/core/list.dart
@@ -108,12 +108,16 @@ abstract class List<E> implements Iterable<E>, EfficientLength {
    * otherwise, it returns a fixed-length list.
    */
   factory List.from(Iterable elements, { bool growable: true }) {
+    // TODO(jmesserly): fix this. This is just to unblock initial SDK check in.
+    return null;
+    /*
     List<E> list = new List<E>();
     for (E e in elements) {
       list.add(e);
     }
     if (growable) return list;
     return makeListFixedLength(list);
+    */
   }
 
   /**