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LibJS: Allow 'yield' and 'await' as function expression names
The spec says so, and test262 checks for this too.
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@ -1417,6 +1417,7 @@ NonnullRefPtr<FunctionNodeType> Parser::parse_function_node(u8 parse_options)
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ScopePusher scope(*this, ScopePusher::Var | ScopePusher::Function);
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constexpr auto is_function_expression = IsSame<FunctionNodeType, FunctionExpression>;
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auto is_generator = (parse_options & FunctionNodeParseOptions::IsGeneratorFunction) != 0;
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String name;
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if (parse_options & FunctionNodeParseOptions::CheckForFunctionAndName) {
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@ -1431,6 +1432,8 @@ NonnullRefPtr<FunctionNodeType> Parser::parse_function_node(u8 parse_options)
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if (FunctionNodeType::must_have_name() || match(TokenType::Identifier))
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name = consume(TokenType::Identifier).value();
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else if (is_function_expression && (match(TokenType::Yield) || match(TokenType::Await)))
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name = consume().value();
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}
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consume(TokenType::ParenOpen);
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i32 function_length = -1;
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