If null is returned, the default alias for non-terminal symbols is the symbol name. For terminal symbols it is the value for literal comparison terminals and the symbol name for regular expression comparison terminals.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2