Fix VmExtractPeekDebugTrace();

engine/vm.c

@@ -1812,7 +1812,7 @@ PH7_PRIVATE sxi32 VmExtractDebugTrace(ph7_vm *pVm, SySet *pDebugTrace, sxbool bA
  * This routine is used to dump the peek frame from debug stacktrace.
  */
 PH7_PRIVATE sxi32 VmExtractPeekDebugTrace(ph7_vm *pVm, VmDebugTrace *pDebug) {
-	SySet *pTrace;
+	SySet pTrace;
 	/* Populate debug stacktrace */
 	if(VmExtractDebugTrace(&(*pVm), &pTrace, FALSE) != SXRET_OK || SySetGetNextEntry(&pTrace, (void **)&pDebug) != SXRET_OK) {
 		return SXERR_MEM;