8027024: String.prototype.charAt and charCodeAt do not evaluate 'self' and 'pos' arguments in right order
Reviewed-by: jlaskey, attila, lagergren
<test/script/basic/JDK-8012164.js>.error(test/script/basic/JDK-8012164.js:38)
<test/script/basic/JDK-8012164.js>.func(test/script/basic/JDK-8012164.js:33)
<test/script/basic/JDK-8012164.js>.<program>(test/script/basic/JDK-8012164.js:47)