| Index: src/parsing/preparser.h
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| diff --git a/src/parsing/preparser.h b/src/parsing/preparser.h
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| index e93f3f998dc27687069e47412b6db94f8de4c46c..d35c439619b2e8722728a1950a2c11315a9af10d 100644
 | 
| --- a/src/parsing/preparser.h
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| +++ b/src/parsing/preparser.h
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| @@ -2737,6 +2737,8 @@ ParserBase<Traits>::ParsePropertyDefinition(
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|      return this->EmptyObjectLiteralProperty();
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|    }
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|  
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| +  BindingPatternUnexpectedToken(classifier);
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| +
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|    if (is_generator || peek() == Token::LPAREN) {
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|      // MethodDefinition
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|      //    PropertyName '(' StrictFormalParameters ')' '{' FunctionBody '}'
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| 
 |