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/debug.c b/debug.c
index cc6a98a906..deec382fa4 100644
--- a/debug.c
+++ b/debug.c
@@ -26,7 +26,7 @@
 #include "vm_debug.h"
 #include "vm_callinfo.h"
 #include "ruby/thread_native.h"
-#include "ractor.h"
+#include "ractor_core.h"
 
 /* This is the only place struct RIMemo is actually used */
 struct RIMemo {