get rid of special WX_ASSERT_FOO_EQUAL macros by defining CppUnit::assertEquals() overloads for wx types

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54696 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/streams/iostreams.cpp

@@ -58,7 +58,7 @@ private:
     void DoTest(Stream& s)
     {
         s.PutC('x');
-        WX_ASSERT_SIZET_EQUAL( 1, s.LastWrite() );
+        CPPUNIT_ASSERT_EQUAL( 1, s.LastWrite() );
 
         s.SeekI(0);
         CPPUNIT_ASSERT_EQUAL( int('x'), s.GetC() );