s4 should be locksurface2 according to JM's spreadsheet, and the spec indicates 2 is a clarification of 1, so we can't offer both
EXPORTS
_ZN18CTExtendedBitmapGc12RunTestCaseLEi @ 1 NONAME
_ZN18CTExtendedBitmapGc24WriteExtendedBitmapInfoLEPhRiPK4TRgbNS_12TStripeStyleE @ 2 NONAME
_ZN18CTExtendedBitmapGcC1EP20MTestHarnessCallBackR14CBitmapContext @ 3 NONAME
_ZN18CTExtendedBitmapGcC2EP20MTestHarnessCallBackR14CBitmapContext @ 4 NONAME
_ZN18CTExtendedBitmapGcD0Ev @ 5 NONAME
_ZN18CTExtendedBitmapGcD1Ev @ 6 NONAME
_ZN18CTExtendedBitmapGcD2Ev @ 7 NONAME
_ZTI18CTExtendedBitmapGc @ 8 NONAME
_ZTV18CTExtendedBitmapGc @ 9 NONAME