use wxCHECK instead of wxASSERT in Alloc() to avoid crashing when (trying to) use strings of length close to INT_MAX (bug 1933693)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@53031 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/string.cpp

@@ -209,8 +209,8 @@ bool wxStringBase::AllocBuffer(size_t nLen)
   wxASSERT( nLen >  0 );
 
   // make sure that we don't overflow
-  wxASSERT( nLen < (INT_MAX / sizeof(wxChar)) -
-                   (sizeof(wxStringData) + EXTRA_ALLOC + 1) );
+  wxCHECK( nLen < (INT_MAX / sizeof(wxChar)) -
+                  (sizeof(wxStringData) + EXTRA_ALLOC + 1), false );
 
   STATISTICS_ADD(Length, nLen);