Merge V8 5.2.361.47  DO NOT MERGE

https://chromium.googlesource.com/v8/v8/+/5.2.361.47

FPIIM-449

Change-Id: Ibec421b85a9b88cb3a432ada642e469fe7e78346
(cherry picked from commit bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8)
diff --git a/test/mjsunit/debug-stack-check-position.js b/test/mjsunit/debug-stack-check-position.js
new file mode 100644
index 0000000..a5570ce
--- /dev/null
+++ b/test/mjsunit/debug-stack-check-position.js
@@ -0,0 +1,30 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --expose-debug-as debug --allow-natives-syntax
+
+var Debug = debug.Debug;
+var exception = null;
+var loop = true;
+
+function listener(event, exec_state, event_data, data) {
+  if (event != Debug.DebugEvent.Break) return;
+  try {
+    assertTrue(exec_state.frame(0).sourceLineText().indexOf("BREAK") > 0);
+  } catch (e) {
+    exception = e;
+  }
+}
+
+function f() {     // BREAK
+  return 1;
+}
+
+Debug.setListener(listener);
+
+%ScheduleBreak();  // Break on function entry.
+f();
+
+Debug.setListener(null);
+assertNull(exception);