[gn build] Port b40a3d7

Author: llvmgnsyncbot

llvm/utils/gn/secondary/libcxx/include/BUILD.gn

@@ -574,6 +574,7 @@ if (current_toolchain == default_toolchain) {
       "__random/weibull_distribution.h",
       "__ranges/access.h",
       "__ranges/all.h",
+      "__ranges/as_rvalue_view.h",
       "__ranges/common_view.h",
       "__ranges/concepts.h",
       "__ranges/copyable_box.h",