Handle constructor bodies

pkg/kernel/lib/transformations/closure/invalidate_closures.dart

+// Copyright (c) 2016, 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 kernel.transformations.closure.invalidate;
+
+import '../../ast.dart';
+
+class InvalidateClosures extends Transformer {
+  FunctionDeclaration visitFunctionDeclaration(FunctionDeclaration node) {
+    invalidate(node.function);
+    return node;
+  }
+
+  FunctionExpression visitFunctionExpression(FunctionExpression node) {
+    invalidate(node.function);
+    return node;
+  }
+
+  void invalidate(FunctionNode function) {
+    var position = function.location;
+    function.body = new ExpressionStatement(new Throw(
+        new StringLiteral("Calling unconverted closure at $position")))
+      ..parent = function;
+  }
+}