Remove typedef st_table_list TABLE_LIST and always use name 'TABLE_LIST'.

The need arose when working on Bug 26141, where it became
necessary to replace TABLE_LIST with its forward declaration in a few
headers, and this involved a lot of s/TABLE_LIST/st_table_list/.
Although other workarounds exist, this patch is in line
with our general strategy of moving away from typedef-ed names.
Sometime in future we might also rename TABLE_LIST to follow the
coding style, but this is a huge change.

sql/sql_base.cc

@@ -848,7 +848,7 @@ void close_temporary_tables(THD *thd)
 */
 
 TABLE_LIST *find_table_in_list(TABLE_LIST *table,
-                               st_table_list *TABLE_LIST::*link,
+                               TABLE_LIST *TABLE_LIST::*link,
                                const char *db_name,
                                const char *table_name)
 {