dartfmt line wrapping bypass option support.

pkg/analyzer/lib/src/services/formatter_impl.dart

 // Copyright (c) 2013, 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.
 
 library formatter_impl;
 
 import 'dart:math';
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/src/generated/java_core.dart' show CharSequence;
@@ skipping 370 matching lines @@
   /// Post format selection information.
   Selection selection;
 
 
   /// Initialize a newly created visitor to write source code representing
   /// the visited nodes to the given [writer].
   SourceVisitor(FormatterOptions options, this.lineInfo, this.source,
     this.preSelection)
       : writer = new SourceWriter(indentCount: options.initialIndentationLevel,
                                 lineSeparator: options.lineSeparator,
+                                maxLineLength: options.pageWidth,
                                 useTabs: options.tabsForIndent,
                                 spacesPerIndent: options.spacesPerIndent),
        codeTransforms = options.codeTransforms;
 
   visitAdjacentStrings(AdjacentStrings node) {
     visitNodes(node.strings, separatedBy: space);
   }
 
   visitAnnotation(Annotation node) {
     token(node.atSign);
@@ skipping 1297 matching lines @@
     var lastLine =
         lineInfo.getLocation(lastOffset).lineNumber;
     var currentLine =
         lineInfo.getLocation(currentOffset).lineNumber;
     return currentLine - lastLine;
   }
 
   String toString() => writer.toString();
 
 }