rem: return a; } 
add: return a; } 
context:     function myfun3(a, b, a) {        return a;    }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/4218d0f5950d93cb2609d946f6af7ce1b2e89575/10.1.3-1.js/clean/js/tests/ecma/ExecutionContexts/10.1.3-1.js