MDEV-26147: The test main.sp-row fails in case it is run in PS mode

In case a stored procedure is invoked in PS mode with argument of type ROW()
like the following one:
  CALL p1(ROW(10,20))
such statement fails with the error
  ER_OPERAND_COLUMNS (1241): Operand should contain 1 column(s)

The reason of emitting the error is that wrong method was invoked
on fixing an item corresponding to an argument of stored procedure -
the method fix_fields_if_needed_for_scalar() was called instead of
fix_fields_if_needed() that should be called.

mysql-test/main/ps.result

@@ -5553,3 +5553,17 @@ DEALLOCATE PREPARE stmt;
 DROP TABLE t1, t2, t3;
 # End of 10.2 tests
 #
+#
+# MDEV-26147: The test main.sp-row fails in case it is run in PS mode
+#
+CREATE PROCEDURE p1(a ROW(a INT,b INT))
+BEGIN
+SELECT a.a, a.b;
+END;
+$$
+PREPARE stmt FROM 'CALL p1(ROW(10, 20))';
+EXECUTE stmt;
+a.a	a.b
+10	20
+DEALLOCATE PREPARE stmt;
+DROP PROCEDURE p1;

mysql-test/main/ps.test

@@ -5000,3 +5000,19 @@ DROP TABLE t1, t2, t3;
 
 --echo # End of 10.2 tests
 --echo #
+
+--echo #
+--echo # MDEV-26147: The test main.sp-row fails in case it is run in PS mode
+--echo #
+DELIMITER $$;
+CREATE PROCEDURE p1(a ROW(a INT,b INT))
+BEGIN
+  SELECT a.a, a.b;
+END;
+$$
+DELIMITER ;$$
+PREPARE stmt FROM 'CALL p1(ROW(10, 20))';
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+DROP PROCEDURE p1;

sql/sql_prepare.cc

@@ -1741,7 +1741,7 @@ static bool mysql_test_call_fields(Prepared_statement *stmt,
 
   while ((item= it++))
   {
-    if (item->fix_fields_if_needed_for_scalar(thd, it.ref()))
+    if (item->fix_fields_if_needed(thd, it.ref()))
       goto err;
   }
   DBUG_RETURN(FALSE);