BUG#35515 Aliases of variables in binary log are ignored with NAME_CONST.

When add an aliase name after NAME_CONST, the aliase name will be overwrite.
      
NAME_CONST will re-set the field's name only if there isn't an aliase in the
function fix-fields().
If there is an aliase, NAME_CONST doesn't re-set the field's name and keeps the old
name.

mysql-test/r/func_misc.result:
  Test result.
mysql-test/r/rpl_name_const.result:
  Test case.
mysql-test/t/func_misc.test:
  Add NAME_CONST test.
mysql-test/t/rpl_name_const.test:
  Test result.
sql/item.cc:
  Re-set field's name if the name is autogenerated, that mean without aliase.

mysql-test/r/rpl_name_const.result

@@ -0,0 +1,28 @@
+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+==== Initialize ====
+[on master]
+create table t1 (id int);
+==== create a procedure that has a column aliase in a subquery ====
+drop procedure if exists test_procedure;
+create procedure test_procedure(_id int)
+begin
+insert into t1 (id)
+select a.id
+from 
+( select _id as id ) a;
+end;$$
+==== enable the binary log, then call the procedure ====
+call test_procedure(1234);
+[on slave]
+select * from t1 order by id;
+id
+1234
+==== Clean up ====
+[on master]
+drop table t1;
+drop procedure test_procedure;