fix some of icc 11.0 warnings and disable a few others

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56792 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/strvararg.h

@@ -564,7 +564,7 @@ struct wxArgNormalizerNarrowChar
         // FIXME-UTF8: which one is better default in absence of fmt string
         //             (i.e. when used like e.g. Foo("foo", "bar", 'c', NULL)?
         if ( !fmt || fmt->GetArgumentType(index) == wxFormatString::Arg_Char )
-            m_value = wxUniChar(value).GetValue();
+            m_value = wx_truncate_cast(T, wxUniChar(value).GetValue());
         else
             m_value = value;
     }