[ruby-cvs:72078] nagachika:r64978 (ruby_2_5): merge revision(s) 64915: [Backport #15205]

[nagachika at ruby-lang.org]

nagachika	2018-10-09 22:59:53 +0900 (Tue, 09 Oct 2018)

  New Revision: 64978

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=64978

  Log:
    merge revision(s) 64915: [Backport #15205]
    
    check argument type.
    
    * iseq.c (iseqw_s_compile): check argument type (T_STRING) to
      avoid SEGV.

  Modified directories:
    branches/ruby_2_5/
  Modified files:
    branches/ruby_2_5/iseq.c
    branches/ruby_2_5/version.h