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+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+ Refer 13.1;
+ It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+ FunctionDeclaration or FunctionExpression.
+es5id: 13.1-24-s
+description: >
+ Strict Mode - SyntaxError is thrown if a function is created using
+ a FunctionDeclaration whose FunctionBody is contained in strict
+ code and the function has two identical parameters
+negative:
+ phase: parse
+ type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_24_fun(param, param) { 'use strict'; }