add stub for testing updates to scoped_timer

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/test/CMakeLists.txt

@@ -101,6 +101,7 @@ add_executable(test-z3
   sat_local_search.cpp
   sat_lookahead.cpp
   sat_user_scope.cpp
+  scoped_timer.cpp
   simple_parser.cpp
   simplex.cpp
   simplifier.cpp

src/test/main.cpp

@@ -259,6 +259,7 @@ int main(int argc, char ** argv) {
     TST(bdd);
     TST(pdd);
     TST(pdd_solver);
+    TST(scoped_timer);
     TST(solver_pool);
     //TST_ARGV(hs);
     TST(finder);

src/test/scoped_timer.cpp

@@ -0,0 +1,9 @@
+// test driver for scoped timer.
+// fixes are required to be fuzzed
+// with single and multi-threaded mode and short timeouts.
+
+#include "util/scoped_timer.h"
+
+void tst_scoped_timer() {
+    
+}