Attempt to fix build.

pkg/analyzer_experimental/lib/src/generated/ast.dart

 // 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.ast;
 import 'dart:collection';
 import 'java_core.dart';
 import 'java_engine.dart';
+import 'package:analyzer_experimental/src/generated/source.dart' show LineInfo;
 import 'scanner.dart';
 import 'engine.dart' show AnalysisEngine;
 import 'utilities_dart.dart';
 import 'element.dart';
 /**
  * The abstract class `ASTNode` defines the behavior common to all nodes in the AST structure
  * for a Dart program.
  *
  * @coverage dart.engine.ast
  */
@@ skipping 2719 matching lines @@
  *     [ImportDirective]
  *   | [ExportDirective]
  *
  * declarations ::=
  *     [CompilationUnitMember]*
  * </pre>
  *
  * @coverage dart.engine.ast
  */
 class CompilationUnit extends ASTNode {
+  /**
+   * The line information for this compilation unit.
+   */
+  LineInfo lineInfo;
 
   /**
    * The first token in the token stream that was parsed to form this compilation unit.
    */
   Token _beginToken;
 
   /**
    * The script tag at the beginning of the compilation unit, or `null` if there is no script
    * tag in this compilation unit.
    */
@@ skipping 12128 matching lines @@
   void operator[]=(int index, E node) {
     if (index < 0 || index >= _elements.length) {
       throw new RangeError("Index: ${index}, Size: ${_elements.length}");
     }
     _elements[index] as E;
     owner.becomeParentOf(node);
     _elements[index] = node;
   }
   int get length => _elements.length;
 }