Fix receiver in Runtime::GetFrameDetails

test/debugger/regress/regress-5950.js

Index: test/debugger/regress/regress-5950.js
diff --git a/test/debugger/regress/regress-5950.js b/test/debugger/regress/regress-5950.js
new file mode 100644
index 0000000000000000000000000000000000000000..9f0ea5bc90a300102831eb740b56e435e48bdb94
--- /dev/null
+++ b/test/debugger/regress/regress-5950.js
@@ -0,0 +1,37 @@
+// Copyright 2017 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.
+
+function f() {
+  debugger;
+}
+
+function g() {
+  f();
+}
+
+function h() {
+  'use strict';
+  return g();
+}
+
+h();
+h();
+
+var Debug = debug.Debug;
+var exception = null;
+
+function listener(event, exec_state, event_data, data) {
+  if (event != Debug.DebugEvent.Break) return;
+  try {
+    var all_scopes = exec_state.frame().allScopes();
+  } catch (e) {
+    exception = e;
+  }
+}
+
+Debug.setListener(listener);
+%OptimizeFunctionOnNextCall(h);
+h();
+Debug.setListener(null);
+assertNull(exception);