Support static field access in analyzer2dart.

pkg/analyzer2dart/test/end2end_test.dart

Index: pkg/analyzer2dart/test/end2end_test.dart
diff --git a/pkg/analyzer2dart/test/end2end_test.dart b/pkg/analyzer2dart/test/end2end_test.dart
index acdd8386338bab06a7f49784b0b12bb62cd5d78b..d293c5c2f87d0f15a52d6ec477e89283da6fecd4 100644
--- a/pkg/analyzer2dart/test/end2end_test.dart
+++ b/pkg/analyzer2dart/test/end2end_test.dart
@@ -310,6 +310,20 @@ main() $NEW_BACKEND_COMMENT
 
 ''');
   });
+
+  test('Top level field access', () {
+    checkResult('''
+main(args) {
+  return deprecated;
+}
+''', '''
+main(args) $NEW_BACKEND_COMMENT
+  {
+    return deprecated;
+  }
+
+''');
+  });
 }
 
 checkResult(String input, String expectedOutput) {