.gdbinit: rp_id

* .gdbinit (rp_id): extract from rp and rb_id2name.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42983 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
.gdbinit: rp_string

* .gdbinit (rp_string): extract from rp.

* .gdbinit (rp_id): use rp_string to show the content.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42984 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
.gdbinit: show ID type

* .gdbinit (rp_id): show ID type.

* template/id.h.tmpl (ruby_id_types): make enum for debugger.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42985 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ext/-test-/symbol: move upward

* ext/-test-/symbol/extconf.rb: move the extension object file upward.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42986 b2dd03c8-39d4-4d8f-98ff-823fe69b080e