Correctly compile unresolved for-in loops.

dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart

 // Copyright (c) 2012, 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 elements;
 
 import 'dart:uri';
 
 import 'modelx.dart';
 import '../tree/tree.dart';
@@ skipping 167 matching lines @@
   Link<MetadataAnnotation> get metadata;
 
   Node parseNode(DiagnosticListener listener);
   DartType computeType(Compiler compiler);
 
   bool isFunction();
   bool isConstructor();
   bool isClosure();
   bool isMember();
   bool isInstanceMember();
-  bool isInStaticMember();
 
   bool isFactoryConstructor();
   bool isGenerativeConstructor();
   bool isGenerativeConstructorBody();
   bool isCompilationUnit();
   bool isClass();
   bool isPrefix();
   bool isVariable();
   bool isParameter();
   bool isStatement();
@@ skipping 88 matching lines @@
     }
     return !Elements.isUnresolved(element)
            && !element.isInstanceMember()
            && !element.isPrefix()
            && element.enclosingElement != null
            && (element.enclosingElement.kind == ElementKind.CLASS ||
                element.enclosingElement.kind == ElementKind.COMPILATION_UNIT ||
                element.enclosingElement.kind == ElementKind.LIBRARY);
   }
 
+  static bool isInStaticContext(Element element) {
+    if (isUnresolved(element)) return true;
+    if (element.enclosingElement.isClosure()) {
+      var closureClass = element.enclosingElement;
+      element = closureClass.methodElement;
+    }
+    Element outer = element.getOutermostEnclosingMemberOrTopLevel();
+    if (isUnresolved(outer)) return true;
+    if (outer.isTopLevel()) return true;
+    if (outer.isGenerativeConstructor()) return false;
+    if (outer.isInstanceMember()) return false;
+    return true;
+  }
+
   static bool isStaticOrTopLevelField(Element element) {
     return isStaticOrTopLevel(element)
            && (identical(element.kind, ElementKind.FIELD)
                || identical(element.kind, ElementKind.GETTER)
                || identical(element.kind, ElementKind.SETTER));
   }
 
   static bool isStaticOrTopLevelFunction(Element element) {
     return isStaticOrTopLevel(element)
            && (identical(element.kind, ElementKind.FUNCTION));
@@ skipping 551 matching lines @@
   int get resolutionState;
   Token get beginToken;
   Token get endToken;
 
   // TODO(kasperl): Try to get rid of these.
   void set annotatedElement(Element value);
   void set resolutionState(int value);
 
   MetadataAnnotation ensureResolved(Compiler compiler);
 }