Convert property methods into getters.

sdk/lib/_internal/compiler/implementation/resolution/member_impl.dart

 // Copyright (c) 2012, 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.
 
 part of resolution.compute_members;
 
 class DeclaredMember implements Member {
   final Name name;
   final Element element;
   final InterfaceType declarer;
   final DartType type;
   final FunctionType functionType;
 
   DeclaredMember(this.name, this.element,
                  this.declarer,
                  this.type, this.functionType);
 
-  bool get isStatic => !element.isInstanceMember();
+  bool get isStatic => !element.isInstanceMember;
 
-  bool get isGetter => element.isGetter() || (!isSetter && element.isField());
+  bool get isGetter => element.isGetter || (!isSetter && element.isField);
 
   bool get isSetter => name.isSetter;
 
-  bool get isMethod => element.isFunction();
+  bool get isMethod => element.isFunction;
 
-  bool get isDeclaredByField => element.isField();
+  bool get isDeclaredByField => element.isField;
 
   bool get isAbstract => false;
 
   Member get implementation => this;
 
   /// Returns this member as inherited from [instance].
   ///
   /// For instance:
   ///   class A<T> { T m() {} }
   ///   class B<S> extends A<S> {}
@@ skipping 210 matching lines @@
   bool get isGetter => false;
 
   bool get isMethod => false;
 
   bool get isErroneous => true;
 
   String toString() => "erroneous member '$name' synthesized "
                        "from ${inheritedMembers}";
 }