Proc from Symbol needs a receiver

So its arity should be -2 instead of -1.

[Bug #16640]
https://bugs.ruby-lang.org/issues/16640#change-84337

1 files changed, 1 insertions, 1 deletions

diff --git a/vm_args.c b/vm_args.c
index 9357e97364..e6d4981b33 100644
--- a/vm_args.c
+++ b/vm_args.c
@@ -868,7 +868,7 @@ vm_caller_setup_arg_block(const rb_execution_context_t *ec, rb_control_frame_t *
                     rb_ary_push(callback_arg, block_code);
                     rb_ary_push(callback_arg, ref);
                     OBJ_FREEZE_RAW(callback_arg);
-                    func = rb_func_lambda_new(refine_sym_proc_call, callback_arg, 0, UNLIMITED_ARGUMENTS);
+                    func = rb_func_lambda_new(refine_sym_proc_call, callback_arg, 1, UNLIMITED_ARGUMENTS);
 		    rb_hash_aset(ref, block_code, func);
 		}
 		block_code = func;