Set ai.operation.name tag on request telemetry

Author: trask

agent/exporter/src/main/java/com/microsoft/applicationinsights/agent/Exporter.java

@@ -131,10 +131,10 @@ private void exportRequest(SpanData span) {
         String httpMethod = getString(span, "http.method");
         String name = span.getName();
         if (httpMethod != null && name.startsWith("/")) {
-            telemetry.setName(httpMethod + " " + name);
-        } else {
-            telemetry.setName(span.getName());
+            name = httpMethod + " " + name;
         }
+        telemetry.setName(name);
+        telemetry.getContext().getOperation().setName(name);
 
         if (span.getName().equals("EventHubs.process")) {
             // TODO eventhubs should use CONSUMER instead of SERVER