[libc++] Add helper type non-propagating-cache

Differential Revision: https://reviews.llvm.org/D102121

NOKEYCHECK=True
GitOrigin-RevId: 3959c95deb115e0bc6122faaa244cfb2fc280b50
diff --git a/include/module.modulemap b/include/module.modulemap
index 6931698..4d2101e 100644
--- a/include/module.modulemap
+++ b/include/module.modulemap
@@ -613,6 +613,7 @@
       module empty_view             { private header "__ranges/empty_view.h"            }
       module enable_borrowed_range  { private header "__ranges/enable_borrowed_range.h" }
       module enable_view            { private header "__ranges/enable_view.h"           }
+      module non_propagating_cache  { private header "__ranges/non_propagating_cache.h" }
       module ref_view               { private header "__ranges/ref_view.h"              }
       module size                   { private header "__ranges/size.h"                  }
       module subrange               { private header "__ranges/subrange.h"              }