Add corelib tests

test/codegen/corelib/hidden_library2_test.dart

Index: test/codegen/corelib/hidden_library2_test.dart
diff --git a/test/codegen/corelib/hidden_library2_test.dart b/test/codegen/corelib/hidden_library2_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..277ed54383b5fb7a044fbafbe7219a89c0ce7a32
--- /dev/null
+++ b/test/codegen/corelib/hidden_library2_test.dart
@@ -0,0 +1,15 @@
+// Copyright (c) 2013, 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.
+
+// Test that the internal hidden library doesn't make problems with taking
+// stack-traces.
+
+main() {
+  print(['x'].where((_) {
+    // We actually don't really care for the successful case. We just want to
+    // make sure that the test doesn't crash when it is negative.
+    throw 'fisk';  /// 01: runtime error
+    return true;
+  }).toList());
+}