Correctly compile unresolved for-in loops.

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

Index: dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart b/dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart
index b9a396d7076d1d390b622218e4b8eca129230ed4..e67600310290e80067a67772ff7545dfb1f04ac6 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart
@@ -185,7 +185,6 @@ abstract class Element implements Spannable {
   bool isClosure();
   bool isMember();
   bool isInstanceMember();
-  bool isInStaticMember();
 
   bool isFactoryConstructor();
   bool isGenerativeConstructor();
@@ -294,6 +293,20 @@ class Elements {
                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)