Function llvm_sys::lto::thinlto_codegen_add_cross_referenced_symbol

pub unsafe extern "C" fn thinlto_codegen_add_cross_referenced_symbol(
    cg: thinlto_code_gen_t, 
    name: *const c_char, 
    length: c_int
)

Add a symbol to the list of global symbols that are cross-referenced between ThinLTO files.

Symbols listed can be discarded if every reference from a ThinLTO module to a symbol is optimized away, then the symbol can be discarded.