Remove CompilerCancelledException.

dart/pkg/dart2js_incremental/lib/dart2js_incremental.dart

 // Copyright (c) 2014, 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 dart2js_incremental;
 
 import 'dart:async' show
     EventSink,
     Future;
 
@@ skipping 39 matching lines @@
   final CompilerInputProvider inputProvider;
   final DiagnosticHandler diagnosticHandler;
   final List<String> options;
   final CompilerOutputProvider outputProvider;
   final Map<String, dynamic> environment;
   final List<String> _updates = <String>[];
   final IncrementalCompilerContext _context = new IncrementalCompilerContext();
 
   Compiler _compiler;
 
-  bool get compilerWasCancelled => _compiler.compilerWasCancelled;
-
   IncrementalCompiler({
       this.libraryRoot,
       this.packageRoot,
       this.inputProvider,
       this.diagnosticHandler,
       this.options,
       this.outputProvider,
       this.environment}) {
     if (libraryRoot == null) {
       throw new ArgumentError('libraryRoot is null.');
@@ skipping 88 matching lines @@
   }
 }
 
 class IncrementalCompilationFailed {
   final String reason;
 
   const IncrementalCompilationFailed(this.reason);
 
   String toString() => "Can't incrementally compile program.\n\n$reason";
 }