replace more __WXDEBUG__ occurrences with wxDEBUG_LEVEL

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59725 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/string.cpp

@@ -105,7 +105,7 @@ static wxStrCacheInitializer gs_stringCacheInit;
 
 // gdb seems to be unable to display thread-local variables correctly, at least
 // not my 6.4.98 version under amd64, so provide this debugging helper to do it
-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL >= 2
 
 struct wxStrCacheDumper
 {
@@ -130,7 +130,7 @@ struct wxStrCacheDumper
 
 void wxDumpStrCache() { wxStrCacheDumper::ShowAll(); }
 
-#endif // __WXDEBUG__
+#endif // wxDEBUG_LEVEL >= 2
 
 #ifdef wxPROFILE_STRING_CACHE