Project file updates; cast in strconv.cpp to compile with VC++ 6

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10526 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/strconv.cpp

@@ -357,7 +357,7 @@ size_t wxMBConvUTF8::WC2MB(char *buf, const wchar_t *psz, size_t n) const
     {
         wxUint32 cc;
 #ifdef WC_UTF16
-        size_t pa = decode_utf16(psz,cc);
+        size_t pa = decode_utf16((wchar_t*) psz,cc);
         psz += (pa == (size_t)-1) ? 1 : pa;
 #else
         cc=(*psz++) & 0x7fffffff;