Identify (and sometimes fix) remaining uses of old-style GCC name mangling in cia files - Bug 3115
Instances which don't have defined "CSM_xxx" macros are marked "// CSM needed"
EXPORTS
?Export1@@YAHXZ @ 1 NONAME ; int __cdecl Export1(void)
?Export2@@YAHXZ @ 2 NONAME ; int __cdecl Export2(void)
?Export3@@YAHXZ @ 3 NONAME ; int __cdecl Export3(void)
?Export4@@YAHXZ @ 4 NONAME ABSENT ; int __cdecl Export4(void)
?Export5@@YAHH@Z @ 5 NONAME ABSENT ; int __cdecl Export5(int)
?Export6@@YAHH@Z @ 6 NONAME ; int __cdecl Export6(int)