revert 'add Enum:ToString'

stepmania/src/EnumHelper.cpp

@@ -99,24 +99,11 @@ namespace
 
 		return 1;
 	}
-
-	int ToString( lua_State *L )
-	{
-		luaL_checktype( L, 1, LUA_TTABLE );
-
-		/* Look up the tostring table.  If there is no metafield, then we were
-		 * called on the wrong type. */
-		if( !luaL_getmetafield(L, 1, "tostring") )
-			luaL_typerror( L, 1, "enum" );
-
-		return 1;
-	}
 }
 
 static const luaL_Reg EnumLib[] = {
 	{ "GetName", GetName },
 	{ "Reverse", Reverse },
-	{ "ToString", ToString },
 	{ NULL, NULL }
 };
 
@@ -126,17 +113,14 @@ static void PushEnumMethodTable( lua_State *L )
 }
 
 /* Set up the enum table on the stack, and pop the table. */
-void Enum::SetMetatable( lua_State *L, LuaReference &IndexToEnumString, LuaReference &EnumStringToZeroIndex, LuaReference &EnumStringToString, const char *szName )
+void Enum::SetMetatable( lua_State *L, LuaReference &EnumTable, LuaReference &EnumIndexTable, const char *szName )
 {
-	IndexToEnumString.PushSelf( L );
-	lua_newtable( L );
+	EnumTable.PushSelf( L );
 	{
-		EnumStringToZeroIndex.PushSelf( L );
+		lua_newtable( L );
+		EnumIndexTable.PushSelf( L );
 		lua_setfield( L, -2, "reverse" );
 
-		EnumStringToString.PushSelf( L );
-		lua_setfield( L, -2, "tostring" );
-
 		lua_pushstring( L, szName );
 		lua_setfield( L, -2, "name" );
 
@@ -148,7 +132,7 @@ void Enum::SetMetatable( lua_State *L, LuaReference &IndexToEnumString, LuaRefer
 		lua_setfield( L, -2, "__type" ); // for luaL_pushtype
 	}
 	lua_setmetatable( L, -2 );
-	lua_pop( L, 1 );
+	lua_pop( L, 2 );
 }
 
 /*