Emit compile time error on static non-members.

sdk/lib/_internal/compiler/implementation/resolution/members.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.
 
 part of resolution;
 
 abstract class TreeElements {
   Element operator[](Node node);
   Selector getSelector(Send send);
   Selector getGetterSelectorInComplexSendSet(SendSet node);
@@ skipping 1803 matching lines @@
         Initializers.isConstructorRedirect(initializers.head)) {
       Selector selector =
           getRedirectingThisOrSuperConstructorSelector(initializers.head);
       final ClassElement classElement = constructor.getEnclosingClass();
       return classElement.lookupConstructor(selector);
     }
     return null;
   }
 
   void setupFunction(FunctionExpression node, FunctionElement function) {
+    Element enclosingElement = function.enclosingElement;
+    if (node.modifiers.isStatic() &&
+        enclosingElement.kind != ElementKind.CLASS) {
+      compiler.reportErrorCode(node, MessageKind.ILLEGAL_STATIC);
+    }
+
     scope = new MethodScope(scope, function);
-
     // Put the parameters in scope.
     FunctionSignature functionParameters =
         function.computeSignature(compiler);
     Link<Node> parameterNodes = (node.parameters == null)
         ? const Link<Node>() : node.parameters.nodes;
     functionParameters.forEachParameter((Element element) {
       if (element == functionParameters.optionalParameters.head) {
         NodeList nodes = parameterNodes.head;
         parameterNodes = nodes.nodes;
       }
@@ skipping 1984 matching lines @@
     return e;
   }
 
   /// Assumed to be called by [resolveRedirectingFactory].
   Element visitReturn(Return node) {
     Node expression = node.expression;
     return finishConstructorReference(visit(expression),
                                       expression, expression);
   }
 }