merge revision(s) 43913: [Backport #8872] [Backport #9175]

	* vm_insnhelper.c (check_match): Fix SEGV with VM_CHECKMATCH_TYPE_CASE
	  and class of `pattern` has `method_missing`
	  [Bug #8882] [ruby-core:58606]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@44695 b2dd03c8-39d4-4d8f-98ff-823fe69b080e