[libc++] Implement P2446R2 (views::as_rvalue)

Reviewed By: ldionne, var-const, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D137637

NOKEYCHECK=True
GitOrigin-RevId: b40a3d73dc9c10a25a72e82da70d58727d198b80
diff --git a/include/module.modulemap.in b/include/module.modulemap.in
index a6521a9..ffc8e27 100644
--- a/include/module.modulemap.in
+++ b/include/module.modulemap.in
@@ -1221,6 +1221,7 @@
         export functional.__functional.compose
         export functional.__functional.perfect_forward
       }
+      module as_rvalue_view         { private header "__ranges/as_rvalue_view.h" }
       module common_view            { private header "__ranges/common_view.h" }
       module concepts               { private header "__ranges/concepts.h" }
       module copyable_box           { private header "__ranges/copyable_box.h" }