switch tests to CDRMonitor

Explicit call to epicsExitCallAtExits is needed to
preserve previous order between AtExit cleanup list
and static class destructors.

update llist gold

testApp/misc/testTimer.cpp

@@ -17,6 +17,7 @@
 #include <cstdio>
 
 #include <epicsAssert.h>
+#include <epicsExit.h>
 #include "timeStamp.h"
 #include "event.h"
 #include "timer.h"
@@ -112,6 +113,7 @@ int main(int argc, char *argv[]) {
     oneDelay = .0;
     twoDelay = .0;
     testBasic(fd,auxfd);
-    getShowConstructDestruct()->showDeleteStaticExit(fd);
+    epicsExitCallAtExits();
+    CDRMonitor::get().show(fd);
     return (0);
 }