Issue dev_compiler@443. Clone beginToken.

pkg/analyzer/test/generated/utilities_test.dart

Index: pkg/analyzer/test/generated/utilities_test.dart
diff --git a/pkg/analyzer/test/generated/utilities_test.dart b/pkg/analyzer/test/generated/utilities_test.dart
index 32b2487a806c6fbc36d60ac127ae8b3f464f617b..5fd76fd2ebe9495de46ba112b6d60b98cc0c5b74 100644
--- a/pkg/analyzer/test/generated/utilities_test.dart
+++ b/pkg/analyzer/test/generated/utilities_test.dart
@@ -278,6 +278,13 @@ class AstClonerTest extends EngineTestCase {
     _assertCloneUnit('library l;  var a;');
   }
 
+  void test_visitCompilationUnit_directive_withComment() {
+    _assertCloneUnit(r'''
+/// aaa
+/// bbb
+library l;''');
+  }
+
   void test_visitCompilationUnit_empty() {
     _assertCloneUnit('');
   }