Update pub to new getter syntax.

utils/pub/version.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.
 
 /**
  * Handles version numbers, following the [Semantic Versioning][semver] spec.
  *
  * [semver]: http://semver.org/
  */
 #library('version');
 
 #import('dart:math');
 
 #import('utils.dart');
 
 /** A parsed semantic version number. */
 class Version implements Comparable, Hashable, VersionConstraint {
   /** No released version: i.e. "0.0.0". */
-  static Version get none() => new Version(0, 0, 0);
+  static Version get none => new Version(0, 0, 0);
 
   static final _PARSE_REGEX = const RegExp(
       @'^'                                        // Start at beginning.
       @'(\d+).(\d+).(\d+)'                        // Version number.
       @'(-([0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*))?'  // Pre-release.
       @'(\+([0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*))?' // Build.
       @'$');                                      // Consume entire string.
 
   /** The major version number: "1" in "1.2.3". */
   final int major;
@@ skipping 47 matching lines @@
   bool operator ==(other) {
     if (other is! Version) return false;
     return compareTo(other) == 0;
   }
 
   bool operator <(Version other) => compareTo(other) < 0;
   bool operator >(Version other) => compareTo(other) > 0;
   bool operator <=(Version other) => compareTo(other) <= 0;
   bool operator >=(Version other) => compareTo(other) >= 0;
 
-  bool get isEmpty() => false;
+  bool get isEmpty => false;
 
   /** Tests if [other] matches this version exactly. */
   bool allows(Version other) => this == other;
 
   VersionConstraint intersect(VersionConstraint other) {
     if (other.isEmpty) return other;
 
     // Intersect a version and a range.
     if (other is VersionRange) return other.intersect(this);
 
@@ skipping 126 matching lines @@
    * Creates a new version constraint that is the intersection of [constraints].
    * It will only allow versions that all of those constraints allow. If
    * constraints is empty, then it returns a VersionConstraint that allows all
    * versions.
    */
   VersionConstraint.intersect(Collection<VersionConstraint> constraints);
 
   /**
    * Returns `true` if this constraint allows no versions.
    */
-  bool get isEmpty();
+  bool get isEmpty;
 
   /**
    * Returns `true` if this constraint allows [version].
    */
   bool allows(Version version);
 
   /**
    * Creates a new [VersionConstraint] that only allows [Version]s allowed by
    * both this and [other].
    */
@@ skipping 22 matching lines @@
 
   bool operator ==(other) {
     if (other is! VersionRange) return false;
 
     return min == other.min &&
            max == other.max &&
            includeMin == other.includeMin &&
            includeMax == other.includeMax;
   }
 
-  bool get isEmpty() => false;
+  bool get isEmpty => false;
 
   /** Tests if [other] matches falls within this version range. */
   bool allows(Version other) {
     if (min != null && other < min) return false;
     if (min != null && !includeMin && other == min) return false;
     if (max != null && other > max) return false;
     if (max != null && !includeMax && other == max) return false;
     return true;
   }
 
@@ skipping 74 matching lines @@
     }
 
     if (min == null && max == null) buffer.add('any');
     return buffer.toString();
   }
 }
 
 class _EmptyVersion implements VersionConstraint {
   const _EmptyVersion();
 
-  bool get isEmpty() => true;
+  bool get isEmpty => true;
   bool allows(Version other) => false;
   VersionConstraint intersect(VersionConstraint other) => this;
   String toString() => '<empty>';
 }
 
 class _VersionConstraintFactory {
   factory VersionConstraint.empty() => const _EmptyVersion();
 
   factory VersionConstraint.parse(String text) {
     if (text.trim() == '') {
@@ skipping 37 matching lines @@
         case '<': return new VersionRange(max: version, includeMax: false);
         case '>=': return new VersionRange(min: version, includeMin: true);
         case '>': return new VersionRange(min: version, includeMin: false);
       }
     }
 
     // Otherwise, it must be an explicit version.
     return new Version.parse(text);
   }
 }