Support `cause:` in `Thread#raise` and `Fiber#raise`. (#13967)

* Add support for `cause:` argument to `Fiber#raise` and `Thread#raise`.

The implementation behaviour is consistent with `Kernel#raise` and
`Exception#initialize` methods, allowing the `cause:` argument to be
passed to `Fiber#raise` and `Thread#raise`. This change ensures that
the `cause:` argument is handled correctly, providing a more consistent
and expected behavior when raising exceptions in fibers and threads.

[Feature #21360]

* Shared specs for Fiber/Thread/Kernel raise.

---------

Co-authored-by: Samuel Williams <samuel.williams@shopify.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/internal/eval.h b/internal/eval.h
index a8b649e509..4c1c045b4e 100644
--- a/internal/eval.h
+++ b/internal/eval.h
@@ -26,6 +26,7 @@ extern ID ruby_static_id_status;
 VALUE rb_refinement_module_get_refined_class(VALUE module);
 void rb_class_modify_check(VALUE);
 NORETURN(VALUE rb_f_raise(int argc, VALUE *argv));
+VALUE rb_exception_setup(int argc, VALUE *argv);
 void rb_refinement_setup(struct rb_refinements_data *data, VALUE module, VALUE klass);
 void rb_vm_using_module(VALUE module);
 VALUE rb_top_main_class(const char *method);