fails(JRUBY-2826):Array#pack with ('w') converts to BER-compressed integer
fails(JRUBY-2826):Array#pack with ('w') raises an ArgumentError if the count is greater than the number of remaining array elements
fails(JRUBY-2826):Array#pack with ('w') calls to_int on non-integer values before packing
fails(JRUBY-2826):Array#pack with ('w') raises TypeError on nil and non-numeric arguments
