add rp() and bp() in internal.h.

debug utility macro rp() (rp_m()) and bp() are introduced.
* rp(obj) shows obj information w/o any side-effect to STDERR.
* rp_m(m, obj) is similar to rp(obj), but show m before.
* bp() is alias of ruby_debug_breakpoint(), which is registered
  as a breakpoint in run.gdb (used by `make gdb` or make gdb-ruby`).

1 files changed, 0 insertions, 1 deletions

diff --git a/thread.c b/thread.c
index f9fc70f3cf..0f8b512405 100644
--- a/thread.c
+++ b/thread.c
@@ -66,7 +66,6 @@
 #include "ruby/config.h"
 #include "ruby/io.h"
 #include "eval_intern.h"
-#include "gc.h"
 #include "timev.h"
 #include "ruby/thread.h"
 #include "ruby/thread_native.h"