Store return types of variable initializers in summaries.

pkg/analyzer/lib/src/summary/format.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.
 //
 // This file has been automatically generated.  Please do not edit it manually.
 // To regenerate the file, use the script "pkg/analyzer/tool/generate_files".
 
 library analyzer.src.summary.format;
 
 import 'flat_buffers.dart' as fb;
@@ skipping 2653 matching lines @@
   void set redirectedConstructorName(String _value) {
     assert(!_finished);
     _redirectedConstructorName = _value;
   }
 
   @override
   EntityRefBuilder get returnType => _returnType;
 
   /**
    * Declared return type of the executable.  Absent if the executable is a
-   * constructor or the return type is implicit.
+   * constructor or the return type is implicit.  Absent for executables
+   * associated with variable initializers and closures, since these
+   * executables may have return types that are not accessible via direct
+   * imports.
    */
   void set returnType(EntityRefBuilder _value) {
     assert(!_finished);
     _returnType = _value;
   }
 
   @override
   List<UnlinkedTypeParamBuilder> get typeParameters => _typeParameters ??= <UnlinkedTypeParamBuilder>[];
 
   /**
@@ skipping 1677 matching lines @@
 
   String _name;
   int _prefixReference;
 
   @override
   String get name => _name ??= '';
 
   /**
    * Name of the entity being referred to.  For the pseudo-type `dynamic`, the
    * string is "dynamic".  For the pseudo-type `void`, the string is "void".
+   * For the pseudo-type `bottom`, the string is "*bottom*".
    */
   void set name(String _value) {
     assert(!_finished);
     _name = _value;
   }
 
   @override
   int get prefixReference => _prefixReference ??= 0;
 
   /**
@@ skipping 1315 matching lines @@
     "isStatic": isStatic,
     "name": name,
     "nameOffset": nameOffset,
     "propagatedTypeSlot": propagatedTypeSlot,
     "type": type,
     "visibleLength": visibleLength,
     "visibleOffset": visibleOffset,
   };
 }