ART: Refactor run-test 912 (3/3)

Add run-test Main.

Bug: 32072923
Test: m
Test: art/test/testrunner/testrunner.py -b --host -t 912
Change-Id: I4a4bbe587937d9b87eab77af1a5f05fd4df7f0d4
diff --git a/test/912-classes/src/Main.java b/test/912-classes/src/Main.java
new file mode 100644
index 0000000..395cf6f
--- /dev/null
+++ b/test/912-classes/src/Main.java
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class Main {
+  public static void main(String[] args) throws Exception {
+    art.Test912.run();
+    art.Test912Art.run();
+  }
+}