[debugger,interpreter] add source position to stack checks.

test/mjsunit/debug-stack-check-position.js

Index: test/mjsunit/debug-stack-check-position.js
diff --git a/test/mjsunit/regress/regress-crbug-605581.js b/test/mjsunit/debug-stack-check-position.js
similarity index 63%
copy from test/mjsunit/regress/regress-crbug-605581.js
copy to test/mjsunit/debug-stack-check-position.js
index 0f1daabead95a6357503f418c5b46c710ba6b99b..a5570ce904f41ea0d26ae6280d87f6b9e1544bab 100644
--- a/test/mjsunit/regress/regress-crbug-605581.js
+++ b/test/mjsunit/debug-stack-check-position.js
@@ -2,27 +2,29 @@
 // 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
+// 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 {
-    assertThrows(() => exec_state.frame(0).evaluate("bar.baz"), ReferenceError);
+    assertTrue(exec_state.frame(0).sourceLineText().indexOf("BREAK") > 0);
   } catch (e) {
     exception = e;
   }
 }
 
+function f() {     // BREAK
+  return 1;
+}
+
 Debug.setListener(listener);
 
-(function() {
-  debugger;    // bar is still in TDZ at this point.
-  let bar = 1;
-  (x => bar);  // force bar to be context-allocated.
-})();
+%ScheduleBreak();  // Break on function entry.
+f();
 
 Debug.setListener(null);
 assertNull(exception);