[Interpreter] Pops the context to the correct level on return.

test/mjsunit/ignition/debug-scope-on-return.js

Index: test/mjsunit/ignition/debug-scope-on-return.js
diff --git a/test/mjsunit/ignition/debug-scope-on-return.js b/test/mjsunit/ignition/debug-scope-on-return.js
new file mode 100644
index 0000000000000000000000000000000000000000..5be6de6e65eaea5b09c341d8ce10e4b11c3db89b
--- /dev/null
+++ b/test/mjsunit/ignition/debug-scope-on-return.js
@@ -0,0 +1,31 @@
+// 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
+
+// Check that the we are still in function context when we break on return.
+
+var Debug = debug.Debug;
+
+function listener(event, exec_state, event_data, data) {
+  if (event == Debug.DebugEvent.Break) {
+    // Access scope details to check the context is correct.
+    var scope_count = exec_state.frame().scopeCount();
+    // Do steps until we reach the global scope again.
+    exec_state.prepareStep(Debug.StepAction.StepIn);
+  }
+}
+
+Debug.setListener(listener);
+
+function f() {
+  debugger;
+
+  L: with ({x:12}) {
+    break L;
+  }
+
+  return;
+}
+f();