Fix for summarizing triple slash documentation comments.

pkg/analyzer/test/src/summary/resynthesize_common.dart

Index: pkg/analyzer/test/src/summary/resynthesize_common.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_common.dart b/pkg/analyzer/test/src/summary/resynthesize_common.dart
index 65259ba3d616bcd42267bf82c2d2ceb0d39e4fea..2723d53885afdc4efc433b84657f3dc7c8ce8000 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_common.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_common.dart
@@ -1482,6 +1482,14 @@ class E {
 class C {}''');
   }
 
+  test_class_documented_tripleSlash() {
+    checkLibrary('''
+/// aaa
+/// bbbb
+/// cc
+class C {}''');
+  }
+
   test_class_documented_with_references() {
     checkLibrary('''
 /**