suggest import uris when import is only text in file

pkg/analysis_server/test/services/completion/keyword_contributor_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.services.completion.dart.keyword;
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/completion/dart_completion_manager.dart';
 import 'package:analysis_server/src/services/completion/keyword_contributor.dart';
 import 'package:analyzer/src/generated/scanner.dart';
@@ skipping 784 matching lines @@
     expect(computeFast(), isTrue);
     assertSuggestKeywords([Keyword.AS],
         pseudoKeywords: ['deferred as', 'show', 'hide'],
         relevance: DART_RELEVANCE_HIGH);
   }
 
   test_import_deferred6() {
     addTestSource('import "foo" d^ import');
     expect(computeFast(), isTrue);
     assertSuggestKeywords([Keyword.AS],
-        pseudoKeywords: ['deferred as', 'show', 'hide'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['deferred as', 'show', 'hide'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_import_deferred_as() {
     addTestSource('import "foo" ^;');
     expect(computeFast(), isTrue);
     assertSuggestKeywords([Keyword.AS],
-        pseudoKeywords: ['deferred as', 'show', 'hide'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['deferred as', 'show', 'hide'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_import_deferred_as2() {
     addTestSource('import "foo" d^;');
     expect(computeFast(), isTrue);
     assertSuggestKeywords([Keyword.AS],
-        pseudoKeywords: ['deferred as', 'show', 'hide'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['deferred as', 'show', 'hide'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_import_deferred_as3() {
     addTestSource('import "foo" ^');
     expect(computeFast(), isTrue);
     assertSuggestKeywords([Keyword.AS],
-        pseudoKeywords: ['deferred as', 'show', 'hide'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['deferred as', 'show', 'hide'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_import_deferred_as4() {
     addTestSource('import "foo" d^');
     expect(computeFast(), isTrue);
     assertSuggestKeywords([Keyword.AS],
-        pseudoKeywords: ['deferred as', 'show', 'hide'], relevance: DART_RELEVANCE_HIGH);
+        pseudoKeywords: ['deferred as', 'show', 'hide'],
+        relevance: DART_RELEVANCE_HIGH);
   }
 
   test_import_deferred_not() {
     addTestSource('import "foo" as foo ^;');
     expect(computeFast(), isTrue);
     assertSuggestKeywords([],
         pseudoKeywords: ['show', 'hide'], relevance: DART_RELEVANCE_HIGH);
   }
 
+  test_import_incomplete() {
+    addTestSource('import "^"');
+    expect(computeFast(), isTrue);
+    assertNoSuggestions();
+    assertSuggestKeywords([]);
+  }
+
   test_library() {
     addTestSource('library foo;^');
     expect(computeFast(), isTrue);
     assertSuggestKeywords(DIRECTIVE_AND_DECLARATION_KEYWORDS,
         relevance: DART_RELEVANCE_HIGH);
   }
 
   test_library_declaration() {
     addTestSource('library ^');
     expect(computeFast(), isTrue);
@@ skipping 326 matching lines @@
         (c) => msg.writeln('  $c, ${other.contains(c) ? '' : '<<<<<<<<<<<'}'));
   }
 
   bool _equalSets(Iterable<String> iter1, Iterable<String> iter2) {
     if (iter1.length != iter2.length) return false;
     if (iter1.any((c) => !iter2.contains(c))) return false;
     if (iter2.any((c) => !iter1.contains(c))) return false;
     return true;
   }
 }