Highlight library identifiers as LIBRARY_NAME.

pkg/analysis_server/test/analysis/notification_highlights_test2.dart

Index: pkg/analysis_server/test/analysis/notification_highlights_test2.dart
diff --git a/pkg/analysis_server/test/analysis/notification_highlights_test2.dart b/pkg/analysis_server/test/analysis/notification_highlights_test2.dart
index 002bb1b9dacc63bff04cccafcf12ff0586bb3cd0..89c8322dbd0f83031bb8f218602a315271efa624 100644
--- a/pkg/analysis_server/test/analysis/notification_highlights_test2.dart
+++ b/pkg/analysis_server/test/analysis/notification_highlights_test2.dart
@@ -821,6 +821,25 @@ myLabel:
     });
   }
 
+  test_LIBRARY_NAME_libraryDirective() {
+    addTestFile('''
+library my.lib.name;
+''');
+    return prepareHighlights().then((_) {
+      assertHasStringRegion(HighlightRegionType.LIBRARY_NAME, 'my.lib.name');
+    });
+  }
+
+  test_LIBRARY_NAME_partOfDirective() {
+    _addLibraryForTestPart();
+    addTestFile('''
+part of my.lib.name;
+''');
+    return prepareHighlights().then((_) {
+      assertHasStringRegion(HighlightRegionType.LIBRARY_NAME, 'my.lib.name');
+    });
+  }
+
   test_LITERAL_BOOLEAN() {
     addTestFile('var V = true;');
     return prepareHighlights().then((_) {