Allow include before calling Module#initialize

This is to allow Module subclasses that include modules before
calling super in the subclass's initialize.

Remove rb_module_check_initializable from Module#initialize.
Module#initialize only calls module_exec if a block is passed,
it doesn't have other issues that would cause problems if
called multiple times or with an already initialized module.

Move initialization of super to Module#allocate, though I'm not
sure it is required there.  However, it's needed to be removed
from Module#initialize for this to work.

Fixes [Bug #18292]

1 files changed, 0 insertions, 1 deletions

diff --git a/object.c b/object.c
index 2c9cbe7403..9243df5587 100644
--- a/object.c
+++ b/object.c
@@ -1689,7 +1689,6 @@ static VALUE rb_mod_initialize_exec(VALUE module);
 static VALUE
 rb_mod_initialize(VALUE module)
 {
-    rb_module_check_initializable(module);
     return rb_mod_initialize_exec(module);
 }