merge revision(s) 40913: [Backport #8434]

	* intern.h: remove dangling rb_class_init_copy declaration
	  [ruby-core:55120] [Bug #8434]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@41190 b2dd03c8-39d4-4d8f-98ff-823fe69b080e