[gn] port 12bb291

Author: nico

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

@@ -989,22 +989,12 @@ if (current_toolchain == default_toolchain) {
       "experimental/__simd/traits.h",
       "experimental/__simd/utility.h",
       "experimental/__simd/vec_ext.h",
-      "experimental/deque",
-      "experimental/forward_list",
       "experimental/iterator",
-      "experimental/list",
-      "experimental/map",
-      "experimental/memory_resource",
+      "experimental/memory",
       "experimental/propagate_const",
-      "experimental/regex",
-      "experimental/set",
       "experimental/simd",
-      "experimental/string",
       "experimental/type_traits",
-      "experimental/unordered_map",
-      "experimental/unordered_set",
       "experimental/utility",
-      "experimental/vector",
       "ext/__hash",
       "ext/hash_map",
       "ext/hash_set",

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

@@ -307,7 +307,7 @@ if (libcxx_enable_experimental) {
   static_library("cxx_experimental") {
     output_dir = runtimes_dir
     output_name = "c++experimental"
-    sources = [ "experimental/memory_resource.cpp" ]
+    sources = [ "experimental/keep.cpp" ]
     if (libcxx_enable_filesystem && libcxx_enable_time_zone_database) {
       sources += [
         "tz.cpp",