| Index: src/x64/stub-cache-x64.cc
 | 
| diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
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| index da27fdf0509088cd0caf56ce00e8a20997579ef6..f63a92521952766ae9657874a67332d0e034bbda 100644
 | 
| --- a/src/x64/stub-cache-x64.cc
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| +++ b/src/x64/stub-cache-x64.cc
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| @@ -3390,7 +3390,6 @@ void KeyedStoreStubCompiler::GenerateStoreExternalArray(
 | 
|      case JSObject::FAST_ELEMENTS:
 | 
|      case JSObject::FAST_DOUBLE_ELEMENTS:
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|      case JSObject::DICTIONARY_ELEMENTS:
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| -    case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
 | 
|        UNREACHABLE();
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|        break;
 | 
|    }
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| @@ -3457,7 +3456,6 @@ void KeyedStoreStubCompiler::GenerateStoreExternalArray(
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|          case JSObject::FAST_ELEMENTS:
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|          case JSObject::FAST_DOUBLE_ELEMENTS:
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|          case JSObject::DICTIONARY_ELEMENTS:
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| -        case JSObject::NON_STRICT_ARGUMENTS_ELEMENTS:
 | 
|            UNREACHABLE();
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|            break;
 | 
|        }
 | 
| 
 |