Issue 25385. Set documentation comment for enum constants.

pkg/analyzer/lib/src/summary/summarize_ast.dart

Index: pkg/analyzer/lib/src/summary/summarize_ast.dart
diff --git a/pkg/analyzer/lib/src/summary/summarize_ast.dart b/pkg/analyzer/lib/src/summary/summarize_ast.dart
index 1c5081c710ca5dbc6b0548b8ed1b488ab5a57f77..59fa13e640e9850cabd183a1ddb55efd3c46073e 100644
--- a/pkg/analyzer/lib/src/summary/summarize_ast.dart
+++ b/pkg/analyzer/lib/src/summary/summarize_ast.dart
@@ -863,7 +863,10 @@ class _SummarizeAstVisitor extends RecursiveAstVisitor {
     b.nameOffset = node.name.offset;
     b.values = node.constants
         .map((EnumConstantDeclaration value) => new UnlinkedEnumValueBuilder(
-            name: value.name.name, nameOffset: value.name.offset))
+            documentationComment:
+                serializeDocumentation(value.documentationComment),
+            name: value.name.name,
+            nameOffset: value.name.offset))
         .toList();
     b.documentationComment = serializeDocumentation(node.documentationComment);
     b.annotations = serializeAnnotations(node.metadata);