[ruby-cvs:67519] nobu:r60338 (trunk): fix up r60224

[nobu at ruby-lang.org]

nobu	2017-10-22 10:13:57 +0900 (Sun, 22 Oct 2017)

  New Revision: 60338

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=60338

  Log:
    fix up r60224
    
    * parse.y (match_op_gen): fix optimization at DREGX_ONCE.

  Modified files:
    trunk/parse.y