Fix ill-formatted error messages in analyzer.

pkg/analyzer/test/generated/engine_test.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.
 
 // 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.engine_test;
 
 import 'dart:async';
@@ skipping 2319 matching lines @@
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }
 
 @reflectiveTest
 class DartEntryTest extends EngineTestCase {
   void test_allErrors() {
     Source source = new TestSource();
     DartEntry entry = new DartEntry();
     expect(entry.allErrors, hasLength(0));
     entry.setValue(SourceEntry.CONTENT_ERRORS, <AnalysisError>[
-      new AnalysisError.con1(source, ScannerErrorCode.UNABLE_GET_CONTENT)
+      new AnalysisError.con1(
+          source, ScannerErrorCode.UNABLE_GET_CONTENT, ['exception details'])
     ]);
     entry.setValue(DartEntry.SCAN_ERRORS, <AnalysisError>[
       new AnalysisError.con1(
           source, ScannerErrorCode.UNTERMINATED_STRING_LITERAL)
     ]);
     entry.setValue(DartEntry.PARSE_ERRORS, <AnalysisError>[
       new AnalysisError.con1(source, ParserErrorCode.ABSTRACT_CLASS_MEMBER)
     ]);
     entry.setValueInLibrary(DartEntry.RESOLUTION_ERRORS, source,
         <AnalysisError>[
@@ skipping 4254 matching lines @@
   @override
   bool exists() => true;
 }
 
 class _UniversalCachePartitionTest_test_setMaxCacheSize
     implements CacheRetentionPolicy {
   @override
   RetentionPriority getAstPriority(Source source, SourceEntry sourceEntry) =>
       RetentionPriority.LOW;
 }