[ruby-cvs:68563] ko1:r61382 (trunk): add experimental API.

[ko1 at ruby-lang.org]

ko1	2017-12-21 15:40:28 +0900 (Thu, 21 Dec 2017)

  New Revision: 61382

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61382

  Log:
    add experimental API.
    
    * iseq.c (rb_iseq_code_range): added to access iseq's code range.

  Modified files:
    trunk/iseq.c
    trunk/iseq.h