Change the representation of catch contexts.

src/heap.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 630 matching lines @@
 
   // Allocate a global (but otherwise uninitialized) context.
   MUST_USE_RESULT MaybeObject* AllocateGlobalContext();
 
   // Allocate a function context.
   MUST_USE_RESULT MaybeObject* AllocateFunctionContext(int length,
                                                        JSFunction* closure);
 
   // Allocate a catch context.
   MUST_USE_RESULT MaybeObject* AllocateCatchContext(Context* previous,
-                                                    JSObject* extension);
+                                                    String* name,
+                                                    Object* thrown_object);
   // Allocate a 'with' context.
   MUST_USE_RESULT MaybeObject* AllocateWithContext(Context* previous,
                                                    JSObject* extension);
 
   // Allocates a new utility object in the old generation.
   MUST_USE_RESULT MaybeObject* AllocateStruct(InstanceType type);
 
   // Allocates a function initialized with a shared part.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
@@ skipping 1624 matching lines @@
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG || LIVE_OBJECT_LIST
 
 
 } }  // namespace v8::internal
 
 #undef HEAP
 
 #endif  // V8_HEAP_H_