merge revision(s) r44720: [Backport #9455]

	* compile.c (iseq_build_from_ary_body): Use :blockptr instead of :block
	  as hash key when loading serialized instruction sequences from arrays.
	  [Bug #9455] [ruby-core:60146]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@45106 b2dd03c8-39d4-4d8f-98ff-823fe69b080e