merge revision(s) 39351:

	* file.c (access_internal): removed.

	* file.c (rb_file_readable_real): use access() instead of
	  access_internal().

	* file.c (rb_file_writable_real): ditto.

	* file.c (rb_file_executable_real): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39651 b2dd03c8-39d4-4d8f-98ff-823fe69b080e