Add any/every, and optimize some functions (knowing it's empty string)
Add any/every, and optimize some functions (knowing it's empty string)

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