MDEV-16316 Replace INT_ITEM references in the code behind ORDER, LIMIT, PROCEDURE clause

1. Adding new methods:
- Item::is_order_clause_position()
- Item_splocal::is_valid_limit_clause_variable_with_error()
- Type_handler::is_order_clause_position_type()
- is_limit_clause_valid_type()
and changing all tests related to the ORDER and LIMIT clauses
like "item->type()==INT_ITEM" to these new methods.

2. Adding a helper function prepare_param() in sql_analyse.cc
and replacing three pieces of duplicate code to prepare_param() calls.
Replacing the test "item->type()!=Item::INT_ITEM" to an equivalent
condition using item->basic_const_item() and type_handler()->result_type().

sql/sql_select.cc

@@ -22771,12 +22771,7 @@ find_order_in_list(THD *thd, Ref_ptr_array ref_pointer_array,
   uint counter;
   enum_resolution_type resolution;
 
-  /*
-    Local SP variables may be int but are expressions, not positions.
-    (And they can't be used before fix_fields is called for them).
-  */
-  if (order_item->type() == Item::INT_ITEM && order_item->basic_const_item() &&
-      !from_window_spec)
+  if (order_item->is_order_clause_position() && !from_window_spec)
   {						/* Order by position */
     uint count;
     if (order->counter_used)