merge revision(s) 64786: [Backport #15087]
parse.y: fix block passing with empty kwargs * parse.y (arg_blk_pass): preceeding arguments node may be NULL when an empty keyword argument hash splat is optimized away. [ruby-core:88890] [Bug #15087]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@65579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 64786: [Backport #15087]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@65579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e