Function extend_exported_symbols

pub(crate) fn extend_exported_symbols<'tcx>(
    symbols: &mut Vec<String>,
    tcx: TyCtxt<'tcx>,
    symbol: ExportedSymbol<'tcx>,
    instantiating_crate: CrateNum,
)

On amdhsa, gpu-kernel functions have an associated metadata object with a .kd suffix. Add it to the symbols list for all kernel functions, so that it is exported in the linked object.