Migrate first block of tests in standalone to standalone_2

tests/standalone_2/int_list_test.dart

Index: tests/standalone_2/int_list_test.dart
diff --git a/tests/standalone/int_list_test.dart b/tests/standalone_2/int_list_test.dart
similarity index 91%
rename from tests/standalone/int_list_test.dart
rename to tests/standalone_2/int_list_test.dart
index 2f13b01ab8536ea3e815efbf23a5dea5b8979ac3..c719f4d14b0351c7a8d37a9dd1c2419f4a523c30 100644
--- a/tests/standalone/int_list_test.dart
+++ b/tests/standalone_2/int_list_test.dart
@@ -17,11 +17,11 @@ main() {
   Expect.equals(3 * 10, res);
   res = sumIt1(a, 2);
   Expect.equals(3 * 10, res);
-  a = new Int32List(100);
-  a[2] = 3;
-  res = sumIt2(a, 2);
+  var a1 = new Int32List(100);
+  a1[2] = 3;
+  res = sumIt2(a1, 2);
   Expect.equals(3 * 10, res);
-  res = sumIt2(a, 2);
+  res = sumIt2(a1, 2);
   Expect.equals(3 * 10, res);
 }