Replace 'the the' with 'the'

pkg/analyzer/lib/src/dart/analysis/driver.dart

 // Copyright (c) 2016, 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.
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:typed_data';
 
 import 'package:analyzer/context/context_root.dart';
 import 'package:analyzer/context/declared_variables.dart';
@@ skipping 665 matching lines @@
     return completer.future;
   }
 
   /**
    * Return a [Future] that completes with the signature for the
    * [UnitElementResult] for the file with the given [path], or with `null` if
    * the file cannot be analyzed.
    *
    * The signature is based the APIs of the files of the library (including
    * the file itself) of the requested file and the transitive closure of files
-   * imported and exported by the the library.
+   * imported and exported by the library.
    */
   Future<String> getUnitElementSignature(String path) {
     if (!_fileTracker.fsState.hasUri(path)) {
       return new Future.value();
     }
     var completer = new Completer<String>();
     _unitElementSignatureRequests
         .putIfAbsent(path, () => <Completer<String>>[])
         .add(completer);
     _scheduler.notify(this);
@@ skipping 890 matching lines @@
    */
   final String contentHash;
 
   /**
    * Information about lines in the [content].
    */
   final LineInfo lineInfo;
 
   /**
    * The signature of the result based on the content of the file, and the
-   * transitive closure of files imported and exported by the the library of
+   * transitive closure of files imported and exported by the library of
    * the requested file.
    */
   final String _signature;
 
   /**
    * The fully resolved compilation unit for the [content].
    */
   final CompilationUnit unit;
 
   /**
@@ skipping 244 matching lines @@
   final String path;
 
   /**
    * The MD5 hash of the file content.
    */
   final String contentHash;
 
   /**
    * The signature of the [element] is based the APIs of the files of the
    * library (including the file itself) of the requested file and the
-   * transitive closure of files imported and exported by the the library.
+   * transitive closure of files imported and exported by the library.
    */
   final String signature;
 
   /**
    * The element of the file.
    */
   final CompilationUnitElement element;
 
   UnitElementResult(this.path, this.contentHash, this.signature, this.element);
 }
@@ skipping 183 matching lines @@
           libraryDeclarations.add(new TopLevelDeclarationInSource(
               file.source, declaration, isExported));
         }
       }
     }
 
     // We're not done yet.
     return false;
   }
 }