Include default parameter values into summary.

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

 // Copyright (c) 2016, 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 serialization.summarize_ast;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
@@ skipping 44 matching lines @@
           'Unexpected identifier type: ${identifier.runtimeType}');
     }
     return b;
   }
 
   @override
   EntityRefBuilder serializePropertyAccess(PropertyAccess access) {
     Expression target = access.target;
     if (target is Identifier) {
       EntityRefBuilder targetRef = serializeIdentifier(target);
-      return new EntityRefBuilder(
-          reference: visitor.serializeReference(
-              targetRef.reference, access.propertyName.name));
+      return new EntityRefBuilder(reference: visitor.serializeReference(
+          targetRef.reference, access.propertyName.name));
     } else {
       // TODO(scheglov) should we handle other targets in malformed constants?
       throw new StateError('Unexpected target type: ${target.runtimeType}');
     }
   }
 
   @override
   EntityRefBuilder serializeType(TypeName node) {
     return visitor.serializeTypeName(node);
   }
@@ skipping 611 matching lines @@
     b.isFactory = node.factoryKeyword != null;
     b.isConst = node.constKeyword != null;
     b.isExternal = node.externalKeyword != null;
     b.documentationComment = serializeDocumentation(node.documentationComment);
     executables.add(b);
   }
 
   @override
   UnlinkedParamBuilder visitDefaultFormalParameter(
       DefaultFormalParameter node) {
-    return node.parameter.accept(this);
+    UnlinkedParamBuilder b = node.parameter.accept(this);
+    if (node.defaultValue != null) {
+      b.defaultValue = serializeConstExpr(node.defaultValue);
+    }
+    return b;
   }
 
   @override
   void visitEnumDeclaration(EnumDeclaration node) {
     UnlinkedEnumBuilder b = new UnlinkedEnumBuilder();
     b.name = node.name.name;
     b.nameOffset = node.name.offset;
     b.values = node.constants
         .map((EnumConstantDeclaration value) => new UnlinkedEnumValueBuilder(
             name: value.name.name, nameOffset: value.name.offset))
@@ skipping 167 matching lines @@
 /**
  * A [_TypeParameterScope] is a [_Scope] which defines [_ScopedTypeParameter]s.
  */
 class _TypeParameterScope extends _Scope {
   /**
    * Get the number of [_ScopedTypeParameter]s defined in this
    * [_TypeParameterScope].
    */
   int get length => _definedNames.length;
 }