[libc++][ranges] Add ranges::in_in_result

Add `std::ranges::in_in_result`

Reviewed By: Quuxplusone, Mordante, #libc

Spies: ldionne, libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D116278

NOKEYCHECK=True
GitOrigin-RevId: d3729bb38475c5620cf4ec6c0dfd4613e5e64f8d
diff --git a/include/module.modulemap b/include/module.modulemap
index b514f96..e7f197e 100644
--- a/include/module.modulemap
+++ b/include/module.modulemap
@@ -246,6 +246,7 @@
       module generate                 { private header "__algorithm/generate.h" }
       module generate_n               { private header "__algorithm/generate_n.h" }
       module half_positive            { private header "__algorithm/half_positive.h" }
+      module in_in_result             { private header "__algorithm/in_in_result.h" }
       module in_out_result            { private header "__algorithm/in_out_result.h" }
       module includes                 { private header "__algorithm/includes.h" }
       module inplace_merge            { private header "__algorithm/inplace_merge.h" }