Fixed server plugin status reporting.

pkg/analysis_server/lib/src/get_handler.dart

Index: pkg/analysis_server/lib/src/get_handler.dart
diff --git a/pkg/analysis_server/lib/src/get_handler.dart b/pkg/analysis_server/lib/src/get_handler.dart
index 4a48d8430b6e74f8c071ddbf2ebc73e2d55018b3..b527991e2e5d27c1c360c972f3270491891888a3 100644
--- a/pkg/analysis_server/lib/src/get_handler.dart
+++ b/pkg/analysis_server/lib/src/get_handler.dart
@@ -1385,9 +1385,9 @@ class GetHandler {
    */
   void _writePluginStatus(StringBuffer buffer) {
     void writePlugin(Plugin plugin) {
-      buffer.write(_server.serverPlugin.uniqueIdentifier);
+      buffer.write(plugin.uniqueIdentifier);
       buffer.write(' (');
-      buffer.write(_server.serverPlugin.runtimeType);
+      buffer.write(plugin.runtimeType);
       buffer.write(')<br>');
     }
     buffer.write('<h3>Plugin Status</h3><p>');