Enhance the base/rom extension to generate the symbol file of the rom built.
The symbol file is placed in epoc32/rom/<baseport_name>, along with the rom log and final oby file.
EXPORTS
?DebuggerInfo@Debugger@@SAPAVDDebuggerInfo@@XZ @ 1 NONAME ; public: static class DDebuggerInfo * __cdecl Debugger::DebuggerInfo(void)
?Install@Debugger@@SAHPAVDDebuggerInfo@@@Z @ 2 NONAME ; public: static int __cdecl Debugger::Install(class DDebuggerInfo *)