remove global

benchmarks/wota_nota_json.ce

@@ -15,7 +15,7 @@
 // Parse command line arguments
 if (arg.length != 2) {
   log.console('Usage: cell benchmark_wota_nota_json.ce <LibraryName> <ScenarioName>');
-  $_.stop()
+  $stop()
 }
 
 var lib_name = arg[0];
@@ -172,13 +172,13 @@ var bench = benchmarks.find(b => b.name == scenario_name);
 if (!lib) {
   log.console('Unknown library:', lib_name);
   log.console('Available libraries:', libraries.map(l => l.name).join(', '));
-  $_.stop()
+  $stop()
 }
 
 if (!bench) {
   log.console('Unknown scenario:', scenario_name);
   log.console('Available scenarios:', benchmarks.map(b => b.name).join(', '));
-  $_.stop()
+  $stop()
 }
 
 // Run the benchmark for this library/scenario combination
@@ -201,4 +201,4 @@ var result = {
 
 log.console(result);
 
-$_.stop()
+$stop()