don't lock the gs_prevCS critical section recursively (replaces patch 1857581)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@50993 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/log.h

@@ -297,7 +297,11 @@ private:
 
     // this is the replacement of DoLogNumberOfRepeats() (which has to be kept
     // to avoid breaking ABI in this version)
-    unsigned LogLastRepetitionCountIfNeeded();
+    unsigned LogLastRepeatIfNeeded();
+
+    // implementation of the function above which supposes that the caller had
+    // already locked gs_prevCS
+    unsigned LogLastRepeatIfNeededUnlocked();
 };
 
 // ----------------------------------------------------------------------------