MDEV-5421 Assertion `! is_set()' fails on INSERT IGNORE when a table has no partition for a value

make print_no_partition_found() to respect MYF(errflag)

mysql-test/suite/parts/t/insert_ignore-5421.test:
  mdev:5421

mysql-test/suite/parts/r/insert_ignore-5421.result

+CREATE TABLE t1 (i INT) ENGINE=MyISAM
+PARTITION BY RANGE (i) (
+PARTITION p00 VALUES LESS THAN (1),
+PARTITION p01 VALUES LESS THAN (2)
+);
+INSERT IGNORE INTO t1 VALUES (3);
+Warnings:
+Warning	1526	Table has no partition for value 3
+DROP TABLE t1;

mysql-test/suite/parts/t/insert_ignore-5421.test

+#
+# MDEV-5421 Assertion `! is_set()' fails on INSERT IGNORE when a table has no partition for a value
+#
+
+--source include/have_partition.inc
+CREATE TABLE t1 (i INT) ENGINE=MyISAM
+PARTITION BY RANGE (i) (
+  PARTITION p00 VALUES LESS THAN (1),
+  PARTITION p01 VALUES LESS THAN (2)
+);
+INSERT IGNORE INTO t1 VALUES (3);
+DROP TABLE t1;

sql/ha_partition.cc

@@ -7207,7 +7207,7 @@ void ha_partition::print_error(int error, myf errflag)
       {
         if (!(thd->lex->alter_info.flags & ALTER_TRUNCATE_PARTITION))
         {
-          m_part_info->print_no_partition_found(table);
+          m_part_info->print_no_partition_found(table, errflag);
           DBUG_VOID_RETURN;
         }
       }

sql/partition_info.cc

@@ -1330,7 +1330,7 @@ end:
   RETURN VALUES
 */
 
-void partition_info::print_no_partition_found(TABLE *table_arg)
+void partition_info::print_no_partition_found(TABLE *table_arg, myf errflag)
 {
   char buf[100];
   char *buf_ptr= (char*)&buf;
@@ -1344,7 +1344,7 @@ void partition_info::print_no_partition_found(TABLE *table_arg)
                                 SELECT_ACL, &table_list, TRUE))
   {
     my_message(ER_NO_PARTITION_FOR_GIVEN_VALUE,
-               ER(ER_NO_PARTITION_FOR_GIVEN_VALUE_SILENT), MYF(0));
+               ER(ER_NO_PARTITION_FOR_GIVEN_VALUE_SILENT), errflag);
   }
   else
   {
@@ -1360,7 +1360,7 @@ void partition_info::print_no_partition_found(TABLE *table_arg)
                      part_expr->unsigned_flag ? 10 : -10);
       dbug_tmp_restore_column_map(table_arg->read_set, old_map);
     }
-    my_error(ER_NO_PARTITION_FOR_GIVEN_VALUE, MYF(0), buf_ptr);
+    my_error(ER_NO_PARTITION_FOR_GIVEN_VALUE, errflag, buf_ptr);
   }
 }
 

sql/partition_info.h

@@ -288,7 +288,7 @@ public:
   bool check_partition_info(THD *thd, handlerton **eng_type,
                             handler *file, HA_CREATE_INFO *info,
                             bool check_partition_function);
-  void print_no_partition_found(TABLE *table);
+  void print_no_partition_found(TABLE *table, myf errflag);
   void print_debug(const char *str, uint*);
   Item* get_column_item(Item *item, Field *field);
   int fix_partition_values(THD *thd,