Ensure start function has correct declaration.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65856 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

coroutine/amd64/Context.h

@@ -23,7 +23,7 @@ typedef struct
 	void **stack_pointer;
 } coroutine_context;
 
-typedef void(* coroutine_start)(coroutine_context *from, coroutine_context *self);
+typedef COROUTINE(* coroutine_start)(coroutine_context *from, coroutine_context *self);
 
 inline void coroutine_initialize(
 	coroutine_context *context,

coroutine/arm32/Context.h

@@ -23,7 +23,7 @@ typedef struct
 	void **stack_pointer;
 } coroutine_context;
 
-typedef void(* coroutine_start)(coroutine_context *from, coroutine_context *self);
+typedef COROUTINE(* coroutine_start)(coroutine_context *from, coroutine_context *self);
 
 inline void coroutine_initialize(
 	coroutine_context *context,

coroutine/arm64/Context.h

@@ -23,7 +23,7 @@ typedef struct
 	void **stack_pointer;
 } coroutine_context;
 
-typedef void(* coroutine_start)(coroutine_context *from, coroutine_context *self);
+typedef COROUTINE(* coroutine_start)(coroutine_context *from, coroutine_context *self);
 
 inline void coroutine_initialize(
 	coroutine_context *context,

coroutine/win32/Context.h

@@ -23,7 +23,7 @@ struct coroutine_context
 	void **stack_pointer;
 };
 
-typedef void(__fastcall * coroutine_start)(coroutine_context *from, coroutine_context *self);
+typedef COROUTINE(* coroutine_start)(coroutine_context *from, coroutine_context *self);
 
 inline void coroutine_initialize(
 	coroutine_context *context,

coroutine/win64/Context.h

@@ -23,7 +23,7 @@ struct coroutine_context
 	void **stack_pointer;
 };
 
-typedef void(* coroutine_start)(coroutine_context *from, coroutine_context *self);
+typedef COROUTINE(* coroutine_start)(coroutine_context *from, coroutine_context *self);
 
 inline void coroutine_initialize(
 	coroutine_context *context,

coroutine/x86/Context.h

@@ -23,7 +23,7 @@ typedef struct
         void **stack_pointer;
 } coroutine_context;
 
-typedef void(* coroutine_start)(coroutine_context *from, coroutine_context *self) __attribute__((fastcall));
+typedef COROUTINE(* coroutine_start)(coroutine_context *from, coroutine_context *self) __attribute__((fastcall));
 
 void coroutine_initialize(
         coroutine_context *context,