merge revision(s) 49517: [Backport #10831]
* vm_core.h (rb_call_info_kw_arg_struct): make keywords a symbols list to get rid of inadvertent creation by variable keyword arguments. [ruby-core:68031] [Bug #10831]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@49666 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 49517: [Backport #10831]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@49666 b2dd03c8-39d4-4d8f-98ff-823fe69b080e