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/**

* @name Arguments redefined

* @description The special 'arguments' variable can be redefined, but this should be avoided

* since it makes code hard to read and maintain and may prevent compiler

* optimizations.

* @kind problem

* @problem.severity recommendation

* @id js/arguments-redefinition

* @tags quality

* reliability

* performance

* @precision very-high

*/

import javascript

from VarRef d

where

d.getVariable().(LocalVariable).getName() = "arguments" and

(d instanceof LValue or d instanceof VarDecl) and

not d.isAmbient() and

not d.inExternsFile()

select d, "Redefinition of arguments."