Util: now that variadic params are Sequential, made all toArray methods that take List public
Util: now that variadic params are Sequential, made all toArray methods that take List public

lucaswerkmeister/ceylon.language,jvasileff/ceylon.language,unratito/ceylon.language,lucaswerkmeister/ceylon.language,unratito/ceylon.language,ceylon/ceylon.language,jvasileff/ceylon.language,ceylon/ceylon.language