recovery from 5.0 merge for bug18676

mysql-test/r/ndb_autodiscover.result:
  recovery for bug#18676 merge in 5.0
sql/ha_ndbcluster.cc:
  recovery for bug#18676 merge in 5.0
sql/handler.cc:
  recovery for bug#18676 merge in 5.0
sql/sql_table.cc:
  recovery for bug#18676 merge in 5.0

mysql-test/r/ndb_autodiscover.result

@@ -382,7 +382,7 @@ create table t1 (a int primary key) engine=ndb;
 select * from t1;
 a
 select * from t1;
-ERROR HY000: Can't lock file (errno: 157)
+ERROR HY000: Can't lock file (errno: 4009)
 use test;
 drop database test_only_ndb_tables;
 CREATE TABLE t9 (

sql/ha_ndbcluster.cc

@@ -221,6 +221,7 @@ static int ndb_to_mysql_error(const NdbError *ndberr)
 {
   /* read the mysql mapped error code */
   int error= ndberr->mysql_code;
+
   switch (error)
   {
     /* errors for which we do not add warnings, just return mapped error code
@@ -239,6 +240,7 @@ static int ndb_to_mysql_error(const NdbError *ndberr)
   default:
     break;
   }
+
   /*
     Push the NDB error message as warning
     - Used to be able to use SHOW WARNINGS toget more info on what the error is

sql/handler.cc

@@ -2865,9 +2865,9 @@ ha_find_files(THD *thd,const char *db,const char *path,
   Ask handler if the table exists in engine
 
   RETURN
-    HA_ERR_NO_SUCH_TABLE     Table does not exist
-    HA_ERR_TABLE_EXIST       Table exists
-    #                        Error code
+    0                   Table does not exist
+    1                   Table exists
+    #                   Error code
 
 */
 struct st_table_exists_in_engine_args
@@ -2891,7 +2891,7 @@ static my_bool table_exists_in_engine_handlerton(THD *thd, st_plugin_int *plugin
 
 int ha_table_exists_in_engine(THD* thd, const char* db, const char* name)
 {
-  int error= HA_ERR_NO_SUCH_TABLE;
+  int error= 0;
   DBUG_ENTER("ha_table_exists_in_engine");
   DBUG_PRINT("enter", ("db: %s, name: %s", db, name));
   st_table_exists_in_engine_args args= {db, name};

sql/sql_table.cc

@@ -3439,7 +3439,6 @@ bool mysql_create_table_internal(THD *thd,
       error= 0;
       goto err;
     }
-    DBUG_PRINT("info",("1"));
     my_error(ER_TABLE_EXISTS_ERROR, MYF(0), alias);
     goto err;
   }
@@ -3451,7 +3450,6 @@ bool mysql_create_table_internal(THD *thd,
     {
       if (create_info->options & HA_LEX_CREATE_IF_NOT_EXISTS)
         goto warn;
-      DBUG_PRINT("info",("2"));
       my_error(ER_TABLE_EXISTS_ERROR,MYF(0),table_name);
       goto unlock_and_end;
     }