Update pub to new getter syntax.

utils/pub/yaml/parser.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.
 
 /**
  * Translates a string of characters into a YAML serialization tree.
  *
  * This parser is designed to closely follow the spec. All productions in the
  * spec are numbered, and the corresponding methods in the parser have the same
  * numbers. This is certainly not the most efficient way of parsing YAML, but it
@@ skipping 423 matching lines @@
 
   /**
    * Throws an error saying that the parse failed. Uses [farthestLine],
    * [farthestColumn], and [farthestContext] to provide additional information.
    */
   parseFailed() {
     throw new SyntaxError(farthestLine + 1, farthestColumn + 1,
         "invalid YAML in $farthestContext");
   }
 
-  /** Returns the number of spaces after the current position. */ 
+  /** Returns the number of spaces after the current position. */
   int countIndentation() {
     var i = 0;
     while (peek(i) == SP) i++;
     return i;
   }
 
   /** Returns the indentation for a block scalar. */
   int blockScalarAdditionalIndentation(_BlockHeader header, int indent) {
     if (!header.autoDetectIndent) return header.additionalIndent;
 
@@ skipping 21 matching lines @@
     if (maxSpaces > spaces) {
       throw new SyntaxError(maxSpacesLine + 1, maxSpaces,
           "Leading empty lines may not be indented more than the first "
           "non-empty line.");
     }
 
     return spaces - indent;
   }
 
   /** Returns whether the current position is at the beginning of a line. */
-  bool get atStartOfLine() => column == 0;
+  bool get atStartOfLine => column == 0;
 
   /** Returns whether the current position is at the end of the input. */
-  bool get atEndOfFile() => pos == len;
+  bool get atEndOfFile => pos == len;
 
   /**
    * Given an indicator character, returns the type of that indicator (or null
    * if the indicator isn't found.
    */
   int indicatorType(int char) {
     switch (char) {
     case HYPHEN: return C_SEQUENCE_ENTRY;
     case QUESTION_MARK: return C_MAPPING_KEY;
     case COLON: return C_MAPPING_VALUE;
@@ skipping 1392 matching lines @@
   String toString() => '($first, $last)';
 }
 
 /** The information in the header for a block scalar. */
 class _BlockHeader {
   final int additionalIndent;
   final int chomping;
 
   _BlockHeader(this.additionalIndent, this.chomping);
 
-  bool get autoDetectIndent() => additionalIndent == null;
+  bool get autoDetectIndent => additionalIndent == null;
 }