use out_of_space instead of out_of_space_ref to align return type

Author: A0su

Python/optimizer_symbols.c

@@ -1685,7 +1685,7 @@ make_bottom(JitOptContext *ctx)
 {
     JitOptSymbol *sym = sym_new(ctx);
     if (sym == NULL) {
-        return out_of_space_ref(ctx);
+        return out_of_space(ctx);
     }
     sym->tag = JIT_SYM_BOTTOM_TAG;
     return sym;