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/trunk@53031 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/stringimpl.cpp

@@ -207,8 +207,8 @@ bool wxStringImpl::AllocBuffer(size_t nLen)
   wxASSERT( nLen >  0 );
 
   // make sure that we don't overflow
-  wxASSERT( nLen < (INT_MAX / sizeof(wxStringCharType)) -
-                   (sizeof(wxStringData) + EXTRA_ALLOC + 1) );
+  wxCHECK( nLen < (INT_MAX / sizeof(wxStringCharType)) -
+                  (sizeof(wxStringData) + EXTRA_ALLOC + 1), false );
 
   STATISTICS_ADD(Length, nLen);