* ext/fiddle/function.c (Fiddle::Function.new): new keyword argument :name to set the name attribute.
* ext/fiddle/lib/fiddle/import.rb (import_function, bind_function): set function name by using the :name keyword argument.
  Re-fixes r38243. [ruby-core:50566]
* test/fiddle/test_function.rb (test_name): test for the :name keyword argument and Fiddle::Function#name.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38322 b2dd03c8-39d4-4d8f-98ff-823fe69b080e