mjit_worker.c: don't ask MJIT copy job to main thread

when main thread is waiting for MJIT worker forever without executing
RUBY_VM_CHECK_INTS due to --jit-wait.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65323 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

mjit_worker.c

@@ -1241,8 +1241,12 @@ mjit_worker(void)
 
             /* Copy ISeq's inline caches values to avoid race condition. */
             if (job.cc_entries != NULL || job.is_entries != NULL) {
-                if (copy_cache_from_main_thread(&job) == FALSE)
+                if (UNLIKELY(mjit_opts.wait)) {
+                    mjit_copy_job_handler((void *)&job); /* main thread is waiting in mjit_wait_call() and doesn't race */
+                }
+                else if (copy_cache_from_main_thread(&job) == FALSE) {
                     continue; /* retry postponed_job failure, or stop worker */
+                }
             }
 
             /* JIT compile */