Add summary support for ConstructorElement.nameEnd and .periodOffset.

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

 // Copyright (c) 2015, 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 summary_resynthesizer;
 
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
@@ skipping 1044 matching lines @@
   /**
    * Resynthesize a [ConstructorElement] and place it in the given [holder].
    * [classType] is the type of the class for which this element is a
    * constructor.
    */
   void buildConstructor(UnlinkedExecutable serializedExecutable,
       ElementHolder holder, InterfaceType classType) {
     assert(serializedExecutable.kind == UnlinkedExecutableKind.constructor);
     currentConstructor = new ConstructorElementImpl(
         serializedExecutable.name, serializedExecutable.nameOffset);
+    if (serializedExecutable.name.isEmpty) {
+      currentConstructor.nameEnd =
+          serializedExecutable.nameOffset + classType.name.length;
+    } else {
+      currentConstructor.nameEnd = serializedExecutable.nameEnd;
+      currentConstructor.periodOffset = serializedExecutable.periodOffset;
+    }
     constructors[serializedExecutable.name] = currentConstructor;
     currentConstructor.returnType = classType;
     buildExecutableCommonParts(currentConstructor, serializedExecutable);
     currentConstructor.factory = serializedExecutable.isFactory;
     currentConstructor.const2 = serializedExecutable.isConst;
     currentConstructor.constantInitializers = serializedExecutable
         .constantInitializers
         .map(buildConstantInitializer)
         .toList();
     if (serializedExecutable.isRedirectedConstructor) {
@@ skipping 1337 matching lines @@
     List<DartType> typeArguments = const <DartType>[];
     if (numTypeArguments != 0) {
       typeArguments = <DartType>[];
       for (int i = 0; i < numTypeArguments; i++) {
         typeArguments.add(getTypeArgument(i));
       }
     }
     return typeArguments;
   }
 }