[gn build] Port 01ace07

Author: llvmgnsyncbot

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

@@ -90,6 +90,7 @@ if (current_toolchain == default_toolchain) {
       "__mutex_base",
       "__node_handle",
       "__nullptr",
+      "__ranges/enable_borrowed_range.h",
       "__split_buffer",
       "__sso_allocator",
       "__std_stream",