demangle context type name in DBG_UNHANDLED_EXCEPTION

Change-Id: I59591d0209ddf2bcf6e57a78dc7999d773b73ae3
Reviewed-on: https://gerrit.libreoffice.org/54805Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

tools/source/debug/debug.cxx

@@ -41,6 +41,10 @@
 
 #include <tools/diagnose_ex.h>
 
+#if defined __GLIBCXX__
+#include <cxxabi.h>
+#endif
+
 #ifdef DBG_UTIL
 
 struct DebugData
@@ -97,6 +101,11 @@ void DbgUnhandledException(const css::uno::Any & caught, const char* currentFunc
         if ( exception.Context.is() )
         {
             const char* pContext = typeid( *exception.Context.get() ).name();
+#if defined __GLIBCXX__
+            // demangle the type name, not necessary under windows, we already get demangled names there
+            int status;
+            pContext = abi::__cxa_demangle( pContext, nullptr, nullptr, &status);
+#endif
             sMessage += "\n    context: ";
             sMessage += pContext;
         }