mjit.c: include mjit_worker.c

instead of linking functions with mjit_worker.o.

In the r64285's structure, we needed to publish some variables with
mjit_ prefix. But ideally those variables should be completely private
in mjit.o (or old mjit_worker.o), and it was hard.

So I chose an approach similar to vm*.c for mjit.c and mjit_worker.c.
I believe mjit_compile.c is still nice to be separated.

After this commit, I'll remove the mjit_ prefix again...

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64289 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

mjit.c

@@ -9,38 +9,11 @@
 /* Functions in this file are never executed on MJIT worker thread.
    So you can safely use Ruby methods and GC in this file. */
 
-#ifdef __sun
-#define __EXTENSIONS__ 1
-#endif
+/* To share variables privately, include mjit_worker.c instead of linking. */
+#include "mjit_worker.c"
 
-#include "internal.h"
-#include "vm_core.h"
-#include "mjit.h"
-#include "gc.h"
 #include "constant.h"
 #include "id_table.h"
-#include "ruby_assert.h"
-#include "ruby/thread.h"
-#include "ruby/util.h"
-
-#ifdef _WIN32
-#include <winsock2.h>
-#include <windows.h>
-#else
-#include <sys/wait.h>
-#include <sys/time.h>
-#include <dlfcn.h>
-#endif
-#include <errno.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-#ifdef HAVE_SYS_PARAM_H
-# include <sys/param.h>
-#endif
-
-#include "dln.h"
-#include "mjit_internal.h"
 
 extern int rb_thread_create_mjit_thread(void (*worker_func)(void));