[libc++] Add ranges::in_fun_result

Add `ranges::in_fun_result`

Reviewed By: Quuxplusone, #libc, var-const

Spies: CaseyCarter, var-const, libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D116974

NOKEYCHECK=True
GitOrigin-RevId: 1e77b396ffe46b165bcdafdf79077a9d1da6c255
diff --git a/include/module.modulemap b/include/module.modulemap
index 528118f..35e57be 100644
--- a/include/module.modulemap
+++ b/include/module.modulemap
@@ -247,6 +247,7 @@
       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_fun_result            { private header "__algorithm/in_fun_result.h" }
       module in_in_out_result         { private header "__algorithm/in_in_out_result.h" }
       module in_in_result             { private header "__algorithm/in_in_result.h" }
       module in_out_out_result        { private header "__algorithm/in_out_out_result.h" }