Fix memory leak in ArraysTestCase unit test.

Clear the items in PTR array explicitly, this is not done by the array itself.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@76906 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/arrays/arrays.cpp

@@ -713,6 +713,7 @@ void ArraysTestCase::TestSTL()
     items.push_back(new Item(17));
     CPPUNIT_ASSERT_EQUAL( 17, (*(items.rbegin()))->n );
     CPPUNIT_ASSERT_EQUAL( 17, (**items.begin()).n );
+    WX_CLEAR_ARRAY(items);
 }
 
 void ArraysTestCase::IndexFromEnd()