merge revision(s) 59307: [Backport #13284]
a64: fix crash on register stack mark/sweep pass * thread_pthread.c: move 'register_stack_start' earlier. [ruby-core:79928] [Bug #13284] [Fix GH-1625] Author: Sergei Trofimovich <slyfox@gentoo.org>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@59405 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 59307: [Backport #13284]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@59405 b2dd03c8-39d4-4d8f-98ff-823fe69b080e