[debugger] fix debug-evaluate wrt shadowed context var.

src/objects.h

 // Copyright 2012 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 3993 matching lines @@
   // no contexts are allocated for this scope ContextLength returns 0.
   int ContextLength();
 
   // Does this scope declare a "this" binding?
   bool HasReceiver();
 
   // Does this scope declare a "this" binding, and the "this" binding is stack-
   // or context-allocated?
   bool HasAllocatedReceiver();
 
+  // Does this scope declare a context-allocated "this" binding?
+  bool HasContextAllocatedReceiver();
+
   // Does this scope declare a "new.target" binding?
   bool HasNewTarget();
 
   // Is this scope the scope of a named function expression?
   bool HasFunctionName();
 
   // Return if this has context allocated locals.
   bool HasHeapAllocatedLocals();
 
   // Return if contexts are allocated for this scope.
@@ skipping 6693 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_