add usage trigger for dlv

Author: ignatov

src/com/goide/runconfig/GoBuildingRunner.java

@@ -36,6 +36,7 @@
 import com.intellij.execution.runners.ExecutionEnvironment;
 import com.intellij.execution.runners.RunContentBuilder;
 import com.intellij.execution.ui.RunContentDescriptor;
+import com.intellij.internal.statistic.UsageTrigger;
 import com.intellij.openapi.fileEditor.FileDocumentManager;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
@@ -184,6 +185,8 @@ public RunContentDescriptor execute(@NotNull final RunProfileState state, @NotNu
         if (executionResult == null) {
           throw new ExecutionException("Cannot run debugger");
         }
+
+        UsageTrigger.trigger("go.dlv.debugger");
 
         return XDebuggerManager.getInstance(env.getProject()).startSession(env, new XDebugProcessStarter() {
           @NotNull