merge revision(s) 46373: [Backport #9905]
* cont.c (rb_fiber_struct): keep context.uc_stack.ss_sp and context.uc_stack.ss_size for later use. Patch by Rei Odaira. [ruby-core:62945] [Bug #9905]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@54273 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 46373: [Backport #9905]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@54273 b2dd03c8-39d4-4d8f-98ff-823fe69b080e