Roll Observatory packages and add a roll script

packages/analyzer/lib/src/generated/element_handle.dart

 // Copyright (c) 2014, 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 code was auto-generated, is not intended to be edited, and is subject to
-// significant change. Please see the README file for more information.
-
 library engine.element_handle;
 
 import 'ast.dart';
 import 'element.dart';
 import 'engine.dart';
 import 'java_core.dart';
 import 'java_engine.dart';
 import 'resolver.dart';
 import 'source.dart';
 import 'utilities_dart.dart';
@@ skipping 315 matching lines @@
     return element;
   }
 
   @override
   AnalysisContext get context => _context;
 
   @override
   String get displayName => actualElement.displayName;
 
   @override
+  SourceRange get docRange => actualElement.docRange;
+
+  @override
   Element get enclosingElement => actualElement.enclosingElement;
 
   @override
   int get hashCode => _location.hashCode;
 
   @override
   bool get isDeprecated => actualElement.isDeprecated;
 
   @override
   bool get isOverride => actualElement.isOverride;
@@ skipping 14 matching lines @@
   @override
   ElementLocation get location => _location;
 
   @override
   List<ElementAnnotation> get metadata => actualElement.metadata;
 
   @override
   String get name => actualElement.name;
 
   @override
+  int get nameLength => actualElement.nameLength;
+
+  @override
   int get nameOffset => actualElement.nameOffset;
 
   @deprecated
   @override
   AstNode get node => computeNode();
 
   @override
   Source get source => actualElement.source;
 
   @override
@@ skipping 121 matching lines @@
   ExecutableElementHandle(ExecutableElement element) : super(element);
 
   @override
   ExecutableElement get actualElement =>
       super.actualElement as ExecutableElement;
 
   @override
   List<FunctionElement> get functions => actualElement.functions;
 
   @override
+  bool get hasImplicitReturnType => actualElement.hasImplicitReturnType;
+
+  @override
   bool get isAbstract => actualElement.isAbstract;
 
   @override
   bool get isAsynchronous => actualElement.isAsynchronous;
 
   @override
   bool get isExternal => actualElement.isExternal;
 
   @override
   bool get isGenerator => actualElement.isGenerator;
@@ skipping 75 matching lines @@
   @override
   FieldElement get actualElement => super.actualElement as FieldElement;
 
   @override
   ClassElement get enclosingElement => actualElement.enclosingElement;
 
   @override
   bool get isEnumConstant => actualElement.isEnumConstant;
 
   @override
-  bool get isStatic => actualElement.isStatic;
-
-  @override
   ElementKind get kind => ElementKind.FIELD;
 
   @override
   VariableDeclaration computeNode() => actualElement.computeNode();
 }
 
 /**
  * Instances of the class `FunctionElementHandle` implement a handle to a
  * `FunctionElement`.
  */
@@ skipping 262 matching lines @@
 
   @override
   MethodDeclaration computeNode() => actualElement.computeNode();
 }
 
 /**
  * Instances of the class `ParameterElementHandle` implement a handle to a
  * `ParameterElement`.
  */
 class ParameterElementHandle extends VariableElementHandle
+    with ParameterElementMixin
     implements ParameterElement {
   /**
    * Initialize a newly created element handle to represent the given element.
    *
    * @param element the element being represented
    */
   ParameterElementHandle(ParameterElement element) : super(element);
 
   @override
   ParameterElement get actualElement => super.actualElement as ParameterElement;
@@ skipping 105 matching lines @@
       : super(element);
 
   @override
   PropertyInducingElement get actualElement =>
       super.actualElement as PropertyInducingElement;
 
   @override
   PropertyAccessorElement get getter => actualElement.getter;
 
   @override
-  bool get isStatic => actualElement.isStatic;
-
-  @override
   DartType get propagatedType => actualElement.propagatedType;
 
   @override
   PropertyAccessorElement get setter => actualElement.setter;
 }
 
 /**
  * Instances of the class `TopLevelVariableElementHandle` implement a handle to a
  * `TopLevelVariableElement`.
  */
@@ skipping 48 matching lines @@
    * Initialize a newly created element handle to represent the given element.
    *
    * @param element the element being represented
    */
   VariableElementHandle(VariableElement element) : super(element);
 
   @override
   VariableElement get actualElement => super.actualElement as VariableElement;
 
   @override
+  bool get hasImplicitType => actualElement.hasImplicitType;
+
+  @override
   FunctionElement get initializer => actualElement.initializer;
 
   @override
   bool get isConst => actualElement.isConst;
 
   @override
   bool get isFinal => actualElement.isFinal;
 
   @override
   bool get isPotentiallyMutatedInClosure =>
       actualElement.isPotentiallyMutatedInClosure;
 
   @override
   bool get isPotentiallyMutatedInScope =>
       actualElement.isPotentiallyMutatedInScope;
 
   @override
+  bool get isStatic => actualElement.isStatic;
+
+  @override
   DartType get type => actualElement.type;
 }
+
 /**
  * TODO(scheglov) invalid implementation
  */
 class WeakReference<T> {
   final T value;
   WeakReference(this.value);
   T get() => value;
 }