debug.c: include RIMemo in ruby_dummy_gdb_enums
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60882 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
debug.c: include RIMemo in ruby_dummy_gdb_enums
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60882 b2dd03c8-39d4-4d8f-98ff-823fe69b080e