find_global_symbol_by_demangled_name
if (find_global_symbol_by_demangled_name(e->patched, sym1, &sym2))
if (!sym2 && find_global_symbol_by_demangled_name(e->patched, sym1, &sym2))
if (!sym1 && find_global_symbol_by_demangled_name(e->orig, sym2, &sym1))