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__8Debugger @ 1 NONAME ; Debugger::DebuggerInfo(void)
Install__8DebuggerP13DDebuggerInfo @ 2 NONAME ; Debugger::Install(DDebuggerInfo *)
Version__8Debugger @ 3 NONAME ; Debugger::Version(void)