Return an array of all possible values from indexing the value x .
For strings an array of int with the ISO10646 codes of the characters in
the string is returned.
For a multiset an array filled with ones (1
) is returned.
For arrays a single-level copy of x is returned.
For mappings the array may contain any value.
For objects which define lfun::_values() that return value will be used.
For other objects an array with the values of all non-static symbols
will be returned.