Fixed compiler warnings (Mostly VC++):

- Removed not used variables
- Changed some ulong parameters/variables to ulonglong (possible serious bug)
- Added casts to get rid of safe assignment from longlong to long (and similar)
- Added casts to function parameters
- Fixed signed/unsigned compares
- Added some constructores to structures
- Removed some not portable constructs

Better fix for bug Bug #21428 "skipped 9 bytes from file: socket (3)" on "mysqladmin shutdown"
(Added new parameter to net_clear() to define when we want the communication buffer to be emptied)


client/mysql.cc:
  Removed not used variable
client/mysqldump.c:
  Fixed compiler warning
client/mysqlslap.c:
  Fixed compiler warning
client/mysqltest.c:
  Fixed compiler warning
extra/replace.c:
  Fixed compiler warning
include/my_global.h:
  Fixed compiler warning
include/mysql_com.h:
  Changed prototype for net_clear()
libmysql/libmysql.c:
  Changed prototype for net_clear()
mysys/base64.c:
  Fixed compiler warning (function definition and prototype didn't match)
mysys/my_thr_init.c:
  AFter merge fixes
mysys/my_vle.c:
  Fixed compiler warning
sql/event_data_objects.cc:
  Fixed compiler warning
sql/event_scheduler.cc:
  Removed not used variable
sql/field.cc:
  Removed not used variables
  Fixed compiler warning
sql/gen_lex_hash.cc:
  Fixed compiler warning
sql/ha_partition.h:
  Fixed compiler warning
sql/handler.cc:
  Fixed compiler warning
sql/item.cc:
  Fixed compiler warning
sql/item_create.cc:
  Fixed compiler warning
sql/item_func.cc:
  Fixed compiler warning
sql/item_strfunc.cc:
  Fixed compiler warning
sql/item_timefunc.cc:
  Fixed compiler warning
sql/item_xmlfunc.cc:
  Fixed compiler warning
sql/log.cc:
  Fixed compiler warning
sql/log_event.cc:
  Fixed compiler warning
sql/log_event.h:
  Fixed compiler warning
sql/mysql_priv.h:
  Fixed too short 'select_type'
sql/net_serv.cc:
  Added argument to net_clear() if we should empty the communication buffer.
sql/opt_range.cc:
  Fixed compiler warning
sql/partition_info.cc:
  Fixed compiler warning
sql/rpl_injector.h:
  Fixed compiler warning
sql/set_var.cc:
  Fixed compiler warning
sql/slave.cc:
  Fixed compiler warning
sql/sp_head.cc:
  Fixed compiler warning
sql/sql_base.cc:
  Fixed compiler warning
sql/sql_db.cc:
  Fixed compiler warning
sql/sql_delete.cc:
  Fixed compiler warning
sql/sql_insert.cc:
  Fixed compiler warning
sql/sql_lex.h:
  Fixed compiler warning
sql/sql_parse.cc:
  Fixed compiler warning
sql/sql_partition.cc:
  Fixed compiler warning
sql/sql_plugin.cc:
  Fixed compiler warning
sql/sql_prepare.cc:
  Fixed compiler warning
sql/sql_rename.cc:
  Fixed compiler warning
sql/sql_select.cc:
  Fixed compiler warning
sql/sql_show.cc:
  Fixed compiler warning
sql/sql_table.cc:
  Fixed compiler warning
sql/sql_trigger.cc:
  Fixed compiler warning
sql-common/client.c:
  Better fix for bug Bug #21428 "skipped 9 bytes from file: socket (3)" on "mysqladmin shutdown"
sql-common/my_time.c:
  Fixed compiler warning
sql/sql_union.cc:
  Fixed compiler warning
sql/sql_update.cc:
  Fixed compiler warning
sql/sql_view.cc:
  Fixed compiler warning
sql/sql_yacc.yy:
  Fixed compiler warning
sql/table.cc:
  Fixed compiler warning
storage/archive/azio.c:
  Fixed compiler warning
storage/csv/ha_tina.cc:
  Removed not used code
storage/myisam/mi_unique.c:
  Fixed compiler warning
storage/ndb/include/util/OutputStream.hpp:
  Fixed compiler warning
storage/ndb/include/util/SocketAuthenticator.hpp:
  Fixed compiler warning
storage/ndb/src/kernel/vm/Pool.hpp:
  Fixed compiler warning
strings/ctype-simple.c:
  Fixed compiler warning
strings/my_strchr.c:
  Fixed compiler warning

mysys/my_thr_init.c

@@ -97,6 +97,8 @@ my_bool my_thread_global_init(void)
   pthread_mutex_init(&THR_LOCK_heap,MY_MUTEX_INIT_FAST);
   pthread_mutex_init(&THR_LOCK_net,MY_MUTEX_INIT_FAST);
   pthread_mutex_init(&THR_LOCK_charset,MY_MUTEX_INIT_FAST);
+  pthread_mutex_init(&THR_LOCK_threads,MY_MUTEX_INIT_FAST);
+  pthread_cond_init(&THR_COND_threads, NULL);
 #if defined( __WIN__) || defined(OS2)
   win_pthread_init();
 #endif
@@ -310,7 +312,7 @@ const char *my_thread_name(void)
   if (!tmp->name[0])
   {
     long id=my_thread_id();
-    sprintf(name_buff,"T@%lu", id);
+    sprintf(name_buff,"T@%ld", id);
     strmake(tmp->name,name_buff,THREAD_NAME_SIZE);
   }
   return tmp->name;