Privatize appropriate module typedefs

include/vlc_common.h

@@ -204,11 +204,8 @@ typedef struct services_discovery_sys_t services_discovery_sys_t;
 typedef struct playlist_add_t playlist_add_t;
 
 /* Modules */
-typedef struct module_bank_t module_bank_t;
 typedef struct module_t module_t;
 typedef struct module_config_t module_config_t;
-typedef struct module_symbols_t module_symbols_t;
-typedef struct module_cache_t module_cache_t;
 
 typedef struct config_category_t config_category_t;
 

src/modules/modules.h

@@ -24,12 +24,14 @@
 #ifndef LIBVLC_MODULES_H
 # define LIBVLC_MODULES_H 1
 
+typedef struct module_cache_t module_cache_t;
+
 /*****************************************************************************
  * module_bank_t: the module bank
  *****************************************************************************
  * This variable is accessed by any function using modules.
  *****************************************************************************/
-struct module_bank_t
+typedef struct module_bank_t
 {
     unsigned         i_usage;
 
@@ -44,7 +46,7 @@ struct module_bank_t
     module_cache_t **pp_loaded_cache;
 
     module_t       *head;
-};
+} module_bank_t;
 
 /*****************************************************************************
  * Module cache description structure