Refactor jit_func_t and jit_exec

I closed https://github.com/ruby/ruby/pull/7543, but part of the diff
seems useful regardless, so I extracted it.

1 files changed, 3 insertions, 3 deletions

diff --git a/vm_core.h b/vm_core.h
index 724c8cd739..f7313205ee 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -373,6 +373,8 @@ enum rb_builtin_attr {
     BUILTIN_ATTR_NO_GC = 0x02,
 };
 
+typedef VALUE (*rb_jit_func_t)(struct rb_execution_context_struct *, struct rb_control_frame_struct *);
+
 struct rb_iseq_constant_body {
     enum rb_iseq_type type;
 
@@ -505,7 +507,7 @@ struct rb_iseq_constant_body {
 
 #if USE_RJIT || USE_YJIT
     // Function pointer for JIT code
-    VALUE (*jit_func)(struct rb_execution_context_struct *, struct rb_control_frame_struct *);
+    rb_jit_func_t jit_func;
     // Number of total calls with jit_exec()
     long unsigned total_calls;
 #endif
@@ -521,8 +523,6 @@ struct rb_iseq_constant_body {
 #endif
 };
 
-typedef VALUE (*jit_func_t)(struct rb_execution_context_struct *, struct rb_control_frame_struct *);
-
 /* T_IMEMO/iseq */
 /* typedef rb_iseq_t is in method.h */
 struct rb_iseq_struct {