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/process.c b/process.c
index d96d1e8374..bcb85ef12f 100644
--- a/process.c
+++ b/process.c
@@ -114,7 +114,7 @@ int initgroups(const char *, rb_gid_t);
 #include "ruby/thread.h"
 #include "ruby/util.h"
 #include "vm_core.h"
-#include "ractor_pub.h"
+#include "ruby/ractor.h"
 
 /* define system APIs */
 #ifdef _WIN32