fix public interface

To make some kind of Ractor related extensions, some functions
should be exposed.

* include/ruby/thread_native.h
  * rb_native_mutex_*
  * rb_native_cond_*
* include/ruby/ractor.h
  * RB_OBJ_SHAREABLE_P(obj)
  * rb_ractor_shareable_p(obj)
  * rb_ractor_std*()
  * rb_cRactor

and rm ractor_pub.h
and rename srcdir/ractor.h to srcdir/ractor_core.h
    (to avoid conflict with include/ruby/ractor.h)

1 files changed, 1 insertions, 1 deletions

diff --git a/io.c b/io.c
index 95a4c7d35e..ca59729e7a 100644
--- a/io.c
+++ b/io.c
@@ -134,7 +134,7 @@
 #include "ruby/thread.h"
 #include "ruby/util.h"
 #include "ruby_atomic.h"
-#include "ractor_pub.h"
+#include "ruby/ractor.h"
 
 #if !USE_POLL
 #  include "vm_core.h"