A post-merge fix.

mysql-test/r/sp.result:
  Manual merge.

mysql-test/r/sp.result

@@ -6145,5 +6145,55 @@ select bug20777(18446744073709551613)+1;
 bug20777(18446744073709551613)+1
 18446744073709551614
 drop function bug20777;
+DROP FUNCTION IF EXISTS bug5274_f1|
+DROP FUNCTION IF EXISTS bug5274_f2|
+CREATE FUNCTION bug5274_f1(p1 CHAR) RETURNS CHAR
+RETURN CONCAT(p1, p1)|
+CREATE FUNCTION bug5274_f2() RETURNS CHAR
+BEGIN
+DECLARE v1 INT DEFAULT 0;
+DECLARE v2 CHAR DEFAULT 'x';
+WHILE v1 < 30 DO
+SET v1 = v1 + 1;
+SET v2 = bug5274_f1(v2);
+END WHILE;
+RETURN v2;
+END|
+SELECT bug5274_f2()|
+bug5274_f2()
+x
+Warnings:
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+DROP FUNCTION bug5274_f1|
+DROP FUNCTION bug5274_f2|
 End of 5.0 tests.
 drop table t1,t2;