Ruby » Ruby master

parse.y: revert lbracket

• parse.y (lbracket): remove .? before aref. [Feature #11537]
  revert r52422 and r52424

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52430 b2dd03c8-39d4-4d8f-98ff-823fe69b080e