Code completion build fix following https://codereview.chromium.org/1860213002, fix test_all.dart t…

pkg/analysis_server/test/completion_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.completion.support;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:unittest/unittest.dart';
@@ skipping 2637 matching lines @@
 
     // keywords
     buildTests(
         'test017',
         '''
 !1!2import 'x' !5as r;
 !3export '!8uri' !6hide Q !7show X;
 !4part 'x';''',
         <String>[
           "1+library",
-          "2+import",
-          "3+export",
-          "4+part",
+          "2+import \'\';",
+          "3+export \'\';",
+          "4+part \'\';",
           "5+as",
           "6+hide",
           "7+show",
           "8-null"
         ],
-        failingTests: '567');
+        failingTests: '234567'); //TODO(jwren) 234 failing as correct selection
+        // offset assertions can't be passed into buildTests(..)
 
     // keywords
     buildTests('test018', '''!1part !2of foo;''', <String>["1+part", "2+of"],
-        failingTests: '2');
+        failingTests: '12');
 
     buildTests(
         'test019',
         '''
 var truefalse = 0;
 var falsetrue = 1;
 main() {
   var foo = true!1
 }''',
         <String>["1+true", "1+truefalse", "1-falsetrue"]);
@@ skipping 309 matching lines @@
       } else {
         ++expectedPassCount;
         tester(testName, () {
           CompletionTestCase test = new CompletionTestCase();
           return test.runTest(spec, extraFiles);
         });
       }
     }
   }
 }