Fix some Windows compiler warnings.

storage/innobase/dict/dict0mem.c

@@ -209,7 +209,7 @@ dict_mem_table_add_col(
 
 	col = (dict_col_t*) dict_table_get_nth_col(table, i);
 
-	col->ind = i;
+	col->ind = (unsigned int) i;
 	col->ord_part = 0;
 
 	col->mtype = (unsigned int) mtype;

storage/innobase/handler/ha_innodb.cc

@@ -7221,7 +7221,7 @@ ulong
 ha_innobase::innobase_get_auto_increment(
 	ulonglong*	value)		/* out: autoinc value */
 {
-	ulint		error;
+	ulong		error;
 
 	do {
 		error = innobase_autoinc_lock();