Use for-each in strong_mode.dart

pkg/analyzer/lib/src/task/strong_mode.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.strong_mode;
 
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
@@ skipping 70 matching lines @@
    */
   InstanceMemberInferrer(this.typeProvider, this.inheritanceManager,
       {TypeSystem typeSystem})
       : typeSystem = (typeSystem != null) ? typeSystem : new TypeSystemImpl();
 
   /**
    * Infer type information for all of the instance members in the given
    * compilation [unit].
    */
   void inferCompilationUnit(CompilationUnitElement unit) {
-    unit.types.forEach((ClassElement classElement) {
+    for (ClassElement classElement in unit.types) {
       try {
         _inferClass(classElement);
       } on _CycleException {
         // This is a short circuit return to prevent types that inherit from
         // types containing a circular reference from being inferred.
       }
-    });
+    }
   }
 
   /**
    * Return `true` if the list of [elements] contains only methods.
    */
   bool _allSameElementKind(
       ExecutableElement element, List<ExecutableElement> elements) {
     return elements.every((e) => e.kind == element.kind);
   }
 
@@ skipping 386 matching lines @@
         results.add(element);
       }
     }
   }
 }
 
 /**
  * A class of exception that is not used anywhere else.
  */
 class _CycleException implements Exception {}