Require all Symbol core
extensions.
Required files
facets/symbol/as_s.rb
facets/symbol/bang.rb
facets/symbol/chomp.rb
facets/symbol/generate.rb
facets/symbol/not.rb
facets/symbol/op_div.rb
facets/symbol/plain.rb
facets/symbol/query.rb
facets/symbol/setter.rb
facets/symbol/succ.rb
facets/symbol/thrown.rb
facets/symbol/to_proc.rb
facets/symbol/variablize.rb