vcl: fix lifecycle test to disposeOnce.

Change-Id: Idef33e0b8e6c986c8808c2b611c5f4b6632e7511
diff --git a/vcl/qa/cppunit/lifecycle.cxx b/vcl/qa/cppunit/lifecycle.cxx
index d73dcc8..04a4719 100644
--- a/vcl/qa/cppunit/lifecycle.cxx
+++ b/vcl/qa/cppunit/lifecycle.cxx
@@ -57,9 +57,9 @@ void LifecycleTest::testMultiDispose()
    VclPtr<WorkWindow> xWin(new WorkWindow((vcl::Window *)NULL,
                                           WB_APP|WB_STDWORK));
    CPPUNIT_ASSERT(xWin.get() != NULL);
    xWin->dispose();
    xWin->dispose();
    xWin->dispose();
    xWin->disposeOnce();
    xWin->disposeOnce();
    xWin->disposeOnce();
    CPPUNIT_ASSERT(xWin->GetWindow(0) == NULL);
    CPPUNIT_ASSERT(xWin->GetChild(0) == NULL);
    CPPUNIT_ASSERT(xWin->GetChildCount() == 0);
@@ -113,8 +113,8 @@ void LifecycleTest::testChildDispose()
    CPPUNIT_ASSERT(xWin.get() != NULL);
    VclPtr<DisposableChild> xChild(new DisposableChild(xWin.get()));
    xWin->Show();
    xChild->dispose();
    xWin->dispose();
    xChild->disposeOnce();
    xWin->disposeOnce();
}

CPPUNIT_TEST_SUITE_REGISTRATION(LifecycleTest);