Display isolate message queue in Observatory debugger

runtime/observatory/lib/service_common.dart

Index: runtime/observatory/lib/service_common.dart
diff --git a/runtime/observatory/lib/service_common.dart b/runtime/observatory/lib/service_common.dart
index 1aff16c4ccc9ede2c5b21798faa5bb5b9e8d4bd6..fe84b207409df3e1c44e6f0fcc593beb1d23fb3f 100644
--- a/runtime/observatory/lib/service_common.dart
+++ b/runtime/observatory/lib/service_common.dart
@@ -316,7 +316,7 @@ abstract class CommonWebSocketVM extends VM {
         request.method != 'getIsolateMetric' &&
         request.method != 'getVMMetric') {
       Logger.root.info(
-          'GET [${serial}] ${request.method} from ${target.networkAddress}');
+          'GET [${serial}] ${request.method}(${request.params}) from ${target.networkAddress}');
     }
     // Send message.
     _webSocket.send(message);