Remove AnalysisErrorWithProperties and ErrorProperty.

pkg/analyzer/lib/src/task/dart.dart

 // Copyright (c) 2015, 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 analyzer.src.task.dart;
 
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_resolution_map.dart';
@@ skipping 1609 matching lines @@
           }
           if (entryPoint == null) {
             entryPoint = _findEntryPoint(partElement);
           }
           directive.element = partElement;
           sourcedCompilationUnits.add(partElement);
         }
       }
     }
     if (hasPartDirective && libraryNameNode == null) {
-      AnalysisError error;
-      if (partsLibraryName != _UNKNOWN_LIBRARY_NAME &&
-          partsLibraryName != null) {
-        error = new AnalysisErrorWithProperties(librarySource, 0, 0,
-            ResolverErrorCode.MISSING_LIBRARY_DIRECTIVE_WITH_PART)
-          ..setProperty(ErrorProperty.PARTS_LIBRARY_NAME, partsLibraryName);
-      } else {
-        error = new AnalysisError(librarySource, 0, 0,
-            ResolverErrorCode.MISSING_LIBRARY_DIRECTIVE_WITH_PART);
-      }
-      errors.add(error);
+      errors.add(new AnalysisError(librarySource, 0, 0,
+          ResolverErrorCode.MISSING_LIBRARY_DIRECTIVE_WITH_PART));
     }
     //
     // Create and populate the library element.
     //
     AnalysisContext owningContext = context;
     if (context is InternalAnalysisContext) {
       InternalAnalysisContext internalContext = context;
       owningContext = internalContext.getContextFor(librarySource);
     }
     //
@@ skipping 4912 matching lines @@
 
   @override
   bool moveNext() {
     if (_newSources.isEmpty) {
       return false;
     }
     currentTarget = _newSources.removeLast();
     return true;
   }
 }