Squashed deprecation warnings in test code.

src/test/java/org/apache/commons/lang3/ArrayUtilsAddTest.java

@@ -238,7 +238,7 @@ public void testLANG571(){
             //expected
         }
         try {
-            @SuppressWarnings("unused")
+            @SuppressWarnings({ "unused", "deprecation" })
             final
             String[] sa = ArrayUtils.add(stringArray, 0, aString);
             fail("Should have caused IllegalArgumentException");
@@ -365,6 +365,7 @@ public void testAddObjectArrayToObjectArray() {
 
     }
 
+    @SuppressWarnings("deprecation")
     @Test
     public void testAddObjectAtIndex() {
         Object[] newArray;

src/test/java/org/apache/commons/lang3/ArrayUtilsTest.java

@@ -42,6 +42,18 @@
 @SuppressWarnings("deprecation") // deliberate use of deprecated code
 public class ArrayUtilsTest  {
 
+    
+    static <T> T[] arrayOfTwo(T a, T b) {
+        return ArrayUtils.toArray(a, b);
+    }
+
+    @Test
+    public void testBadVarArgs() throws Exception {
+        @SuppressWarnings("unused") // Need to assign to trigger exception
+        String[] result = arrayOfTwo("foo", "bar");
+    }
+    
+    
     //-----------------------------------------------------------------------
     @Test
     public void testConstructor() {