Function::isExternal()

There used to be a method in Function called isExternal() that you could call to check if a function is external. That method seems to be removed. What method should now be called to check if a function isExternal?

Regards,
Ryan

There used to be a method in Function called isExternal() that you could
call to check if a function is external. That method seems to be
removed. What method should now be called to check if a function
isExternal?

isDeclaration()

People were confusing externally defined functions with external
linkage. So we changed the nomenclature to isDeclaration.

Reid.