Add completion tests for the new analysis driver.

pkg/analysis_server/test/services/completion/dart/completion_contributor_util.dart

Index: pkg/analysis_server/test/services/completion/dart/completion_contributor_util.dart
diff --git a/pkg/analysis_server/test/services/completion/dart/completion_contributor_util.dart b/pkg/analysis_server/test/services/completion/dart/completion_contributor_util.dart
index 1a5fac833139141a90fb7070f9a3577f34038132..62deed1819cbcb9eebc2cc217530bd1bda672dfe 100644
--- a/pkg/analysis_server/test/services/completion/dart/completion_contributor_util.dart
+++ b/pkg/analysis_server/test/services/completion/dart/completion_contributor_util.dart
@@ -18,6 +18,7 @@ import 'package:analysis_server/src/services/completion/dart/completion_manager.
     show DartCompletionRequestImpl, ReplacementRange;
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/search/search_engine_internal.dart';
+import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/task/dart.dart';
 import 'package:test/test.dart';
@@ -217,8 +218,8 @@ abstract class DartCompletionContributorTest extends AbstractContextTest {
 
   CompletionSuggestion assertSuggestEnumConst(String completion,
       {int relevance: DART_RELEVANCE_DEFAULT, bool isDeprecated: false}) {
-    CompletionSuggestion suggestion =
-        assertSuggest(completion, relevance: relevance, isDeprecated: isDeprecated);
+    CompletionSuggestion suggestion = assertSuggest(completion,
+        relevance: relevance, isDeprecated: isDeprecated);
     expect(suggestion.completion, completion);
     expect(suggestion.isDeprecated, isDeprecated);
     expect(suggestion.element.kind, protocol.ElementKind.ENUM_CONSTANT);
@@ -452,10 +453,16 @@ abstract class DartCompletionContributorTest extends AbstractContextTest {
   }
 
   Future computeSuggestions([int times = 200]) async {
-    context.analysisPriorityOrder = [testSource];
+    AnalysisResult analysisResult = null;
+    if (enableNewAnalysisDriver) {
+      analysisResult = await driver.getResult(testFile);
+      testSource = analysisResult.unit.element.source;
+    } else {
+      context.analysisPriorityOrder = [testSource];
+    }
     CompletionRequestImpl baseRequest = new CompletionRequestImpl(
-        null,
-        context,
+        analysisResult,
+        enableNewAnalysisDriver ? null: context,
         provider,
         searchEngine,
         testSource,
@@ -537,14 +544,18 @@ abstract class DartCompletionContributorTest extends AbstractContextTest {
     return cs;
   }
 
-  Future/*<E>*/ performAnalysis/*<E>*/(int times, Completer/*<E>*/ completer) {
+  Future/*<E>*/ performAnalysis/*<E>*/(int times, Completer/*<E>*/ completer) async {
     if (completer.isCompleted) {
       return completer.future;
     }
-    if (times == 0 || context == null) {
-      return new Future.value();
+    if (enableNewAnalysisDriver) {
+      // Just wait.
+    } else {
+      if (times == 0 || context == null) {
+        return new Future.value();
+      }
+      context.performAnalysisTask();
     }
-    context.performAnalysisTask();
     // We use a delayed future to allow microtask events to finish. The
     // Future.value or Future() constructors use scheduleMicrotask themselves and
     // would therefore not wait for microtask callbacks that are scheduled after