improve code completion abort request tests

pkg/analysis_server/lib/src/domain_completion.dart

Index: pkg/analysis_server/lib/src/domain_completion.dart
diff --git a/pkg/analysis_server/lib/src/domain_completion.dart b/pkg/analysis_server/lib/src/domain_completion.dart
index 8491eb2cf2118ce5d235b53c9897edc30cd93897..aa1c1c06a4eed69df31390feb0f016bef7ac0e75 100644
--- a/pkg/analysis_server/lib/src/domain_completion.dart
+++ b/pkg/analysis_server/lib/src/domain_completion.dart
@@ -78,15 +78,13 @@ class CompletionDomainHandler extends AbstractRequestHandler {
     //
     Map<PluginInfo, Future<plugin.Response>> pluginFutures;
     plugin.CompletionGetSuggestionsParams requestParams;
-    if (server.options.enableNewAnalysisDriver) {
-      String file = params.file;
-      int offset = params.offset;
-      AnalysisDriver driver = server.getAnalysisDriver(file);
-      if (driver != null) {
-        requestParams = new plugin.CompletionGetSuggestionsParams(file, offset);
-        pluginFutures = server.pluginManager
-            .broadcastRequest(requestParams, contextRoot: driver.contextRoot);
-      }
+    String file = params.file;
+    int offset = params.offset;
+    AnalysisDriver driver = server.getAnalysisDriver(file);
+    if (driver != null) {
+      requestParams = new plugin.CompletionGetSuggestionsParams(file, offset);
+      pluginFutures = server.pluginManager
+          .broadcastRequest(requestParams, contextRoot: driver.contextRoot);
     }
     //
     // Compute completions generated by server.