Fix the stack trace when there are C++ frames in between dart frames.

tests/corelib/error_stack_trace1_test.dart

+// 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.
+
+import "package:expect/expect.dart";
+
+class A {
+  static Aa() => Ab();
+  static Ab() => Ac();
+  static Ac() => throw "abc";
+}
+
+class B {
+  static Ba() => Bb();
+  static Bb() => Bc();
+  static Bc() {
+    try {
+      A.Aa();
+    } catch (e) {
+      // This should produce a NoSuchMethodError.
+      var trace = e.stackTrace;
+    }
+  }
+}
+
+main() {
+  bool hasThrown = false;
+  try {
+    B.Ba();
+  } catch (e) {
+    hasThrown = true;
+    var trace = e.stackTrace.toString();
+    print(trace);
+    Expect.isTrue(trace.contains("Bc"));
+    Expect.isTrue(trace.contains("Bb"));
+    Expect.isTrue(trace.contains("Ba"));
+    Expect.isTrue(trace.contains("main"));
+  }
+  Expect.isTrue(hasThrown);
+}