| Index: src/contexts.h
 | 
| diff --git a/src/contexts.h b/src/contexts.h
 | 
| index 0f3d44cc25f0d9bc10a2b137bf69f5d7a9022759..53b40f127d8efac2f45ebfdca2dd55d116cf945b 100644
 | 
| --- a/src/contexts.h
 | 
| +++ b/src/contexts.h
 | 
| @@ -110,6 +110,7 @@ enum ContextLookupFlags {
 | 
|    V(MAP_CACHE_INDEX, Object, map_cache) \
 | 
|    V(CONTEXT_DATA_INDEX, Object, data) \
 | 
|    V(ALLOW_CODE_GEN_FROM_STRINGS_INDEX, Object, allow_code_gen_from_strings) \
 | 
| +  V(DERIVED_HAS_TRAP_INDEX, JSFunction, derived_has_trap) \
 | 
|    V(DERIVED_GET_TRAP_INDEX, JSFunction, derived_get_trap) \
 | 
|    V(DERIVED_SET_TRAP_INDEX, JSFunction, derived_set_trap)
 | 
|  
 | 
| @@ -227,6 +228,7 @@ class Context: public FixedArray {
 | 
|      OUT_OF_MEMORY_INDEX,
 | 
|      CONTEXT_DATA_INDEX,
 | 
|      ALLOW_CODE_GEN_FROM_STRINGS_INDEX,
 | 
| +    DERIVED_HAS_TRAP_INDEX,
 | 
|      DERIVED_GET_TRAP_INDEX,
 | 
|      DERIVED_SET_TRAP_INDEX,
 | 
|  
 | 
| 
 |