Adding old unit tests to test suite.

These tests are copied straight over. They'll still run, but they're
using the old system.

Change-Id: If494519e52ddf858a9febfc55bdae830468cb3c8
diff --git a/test/013-math2/src/Main.java b/test/013-math2/src/Main.java
new file mode 100644
index 0000000..819571d
--- /dev/null
+++ b/test/013-math2/src/Main.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2007 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.
+ */
+
+/**
+ * test add by a 16-bit constant
+ */
+public class Main {
+    public static void main(String args[]) {
+        int a, b, res;
+
+        a = 3;
+        b = 7;
+
+        // a 16-bit constant
+        a += 32000;
+        System.out.println("a:" +a);
+    }
+}