merge revision(s) r40930:

	* test/fiddle/test_c_struct_entry.rb,
	  test/fiddle/test_c_union_entity.rb,
	  test/fiddle/test_cparser.rb, test/fiddle/test_func.rb,
	  test/fiddle/test_handle.rb, test/fiddle/test_import.rb,
	  test/fiddle/test_pointer.rb: don't run test if the system
	  don't support fiddle.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@45371 b2dd03c8-39d4-4d8f-98ff-823fe69b080e