[interpreter] Switch context during stack unwinding.

src/objects.h

 // Copyright 2015 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 4746 matching lines @@
  public:
   // Conservative prediction whether a given handler will locally catch an
   // exception or cause a re-throw to outside the code boundary. Since this is
   // undecidable it is merely an approximation (e.g. useful for debugger).
   enum CatchPrediction { UNCAUGHT, CAUGHT };
 
   // Getters for handler table based on ranges.
   inline int GetRangeStart(int index) const;
   inline int GetRangeEnd(int index) const;
   inline int GetRangeHandler(int index) const;
+  inline int GetRangeDepth(int index) const;
 
   // Setters for handler table based on ranges.
   inline void SetRangeStart(int index, int value);
   inline void SetRangeEnd(int index, int value);
   inline void SetRangeHandler(int index, int offset, CatchPrediction pred);
   inline void SetRangeDepth(int index, int value);
 
   // Setters for handler table based on return addresses.
   inline void SetReturnOffset(int index, int value);
   inline void SetReturnHandler(int index, int offset, CatchPrediction pred);
@@ skipping 6028 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_