unfork DDC's copy of most SDK libraries

pkg/dev_compiler/test/browser/language_tests.js

Index: pkg/dev_compiler/test/browser/language_tests.js
diff --git a/pkg/dev_compiler/test/browser/language_tests.js b/pkg/dev_compiler/test/browser/language_tests.js
index d2ad2b2f0bbbb7e1912adac04e64c47c4db27cae..63cd91a031b535a47ffd84f6684c92d428ea8f51 100644
--- a/pkg/dev_compiler/test/browser/language_tests.js
+++ b/pkg/dev_compiler/test/browser/language_tests.js
@@ -342,7 +342,6 @@ define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require'],
 
       'list_insert_test': fail,
       'list_removeat_test': fail,
-      'set_test': fail, // runtime strong mode reject
     },
 
     'corelib/regexp': {
@@ -351,6 +350,7 @@ define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require'],
     },
 
     'lib/collection': {
+      'list_test': fail,

[vsm, 2017/02/17 16:37:51]

Any idea why this one started breaking?

[Jennifer Messerly, 2017/02/24 23:00:43]

yes, was an internal array created with "[]" instead of "<E>[]" I guess a local
fix we didn't push back. I've rolled it in here and I'll work on a separate CL
for that.

     },
 
     'lib/convert': {