Revert #30349 (#32008)

* [iwyu] Add missing #include <type_traits> to fix build breakage with LLVM after e0a66116fc

* Update IWYU mappings

New libc++ doesn't provide <type_traits> when including <utility>.

* run iwyu

Co-authored-by: alexfh <alexfh@google.com>

src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc

@@ -22,6 +22,7 @@
 
 #include <functional>
 #include <memory>
+#include <type_traits>
 #include <utility>
 
 #include "absl/meta/type_traits.h"

src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc

@@ -65,6 +65,7 @@
 #include <map>
 #include <memory>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/ext/filters/client_channel/lb_policy/outlier_detection/outlier_detection.cc

@@ -28,6 +28,7 @@
 #include <memory>
 #include <set>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/ext/filters/client_channel/lb_policy/priority/priority.cc

@@ -23,6 +23,7 @@
 #include <memory>
 #include <set>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/ext/filters/client_channel/lb_policy/rls/rls.cc

@@ -34,6 +34,7 @@
 #include <random>
 #include <set>
 #include <string>
+#include <type_traits>
 #include <unordered_map>
 #include <utility>
 #include <vector>

src/core/ext/filters/client_channel/lb_policy/xds/cds.cc

@@ -21,6 +21,7 @@
 #include <memory>
 #include <set>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/ext/filters/client_channel/lb_policy/xds/xds_cluster_manager.cc

@@ -22,6 +22,7 @@
 #include <map>
 #include <memory>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/ext/filters/client_channel/lb_policy/xds/xds_cluster_resolver.cc

@@ -24,6 +24,7 @@
 #include <memory>
 #include <set>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/ext/filters/client_channel/resolver/polling_resolver.cc

@@ -21,6 +21,7 @@
 #include <inttypes.h>
 
 #include <functional>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/ext/filters/client_channel/resolver/xds/xds_resolver.cc

@@ -24,6 +24,7 @@
 #include <map>
 #include <memory>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/ext/filters/fault_injection/fault_injection_filter.cc

@@ -24,6 +24,7 @@
 #include <atomic>
 #include <functional>
 #include <string>
+#include <type_traits>
 #include <utility>
 
 #include "absl/status/status.h"

src/core/ext/filters/http/message_compress/compression_filter.cc

@@ -20,6 +20,7 @@
 
 #include <functional>
 #include <memory>
+#include <type_traits>
 #include <utility>
 
 #include "absl/meta/type_traits.h"

src/core/ext/transport/chttp2/client/chttp2_connector.cc

@@ -23,6 +23,7 @@
 #include <stdint.h>
 
 #include <string>
+#include <type_traits>
 #include <utility>
 
 #include "absl/status/status.h"

src/core/ext/xds/xds_client.cc

@@ -22,6 +22,7 @@
 #include <string.h>
 
 #include <algorithm>
+#include <type_traits>
 
 #include "absl/strings/match.h"
 #include "absl/strings/str_cat.h"

src/core/lib/channel/channel_args.h

@@ -27,6 +27,7 @@
 #include <iosfwd>
 #include <memory>
 #include <string>
+#include <type_traits>
 #include <utility>
 
 #include "absl/meta/type_traits.h"

src/core/lib/channel/promise_based_filter.h

@@ -31,6 +31,7 @@
 #include <memory>
 #include <new>
 #include <string>
+#include <type_traits>
 #include <utility>
 
 #include "absl/container/inlined_vector.h"

src/core/lib/event_engine/posix_engine/posix_engine.cc

@@ -21,6 +21,7 @@
 #include <cstring>
 #include <memory>
 #include <string>
+#include <type_traits>
 #include <utility>
 
 #include "absl/cleanup/cleanup.h"

src/core/lib/gprpp/manual_constructor.h

@@ -25,6 +25,7 @@
 
 #include <stddef.h>
 
+#include <type_traits>
 #include <utility>
 
 #include "src/core/lib/gprpp/construct_destruct.h"

src/core/lib/gprpp/no_destruct.h

@@ -17,6 +17,7 @@
 
 #include <grpc/support/port_platform.h>
 
+#include <type_traits>
 #include <utility>
 
 #include "src/core/lib/gprpp/construct_destruct.h"

src/core/lib/gprpp/ref_counted_ptr.h

@@ -22,6 +22,7 @@
 #include <grpc/support/port_platform.h>
 
 #include <iosfwd>
+#include <type_traits>
 #include <utility>
 
 #include "src/core/lib/gprpp/debug_location.h"

src/core/lib/gprpp/table.h

@@ -21,6 +21,7 @@
 
 #include <initializer_list>
 #include <new>
+#include <type_traits>
 #include <utility>
 
 #include "absl/meta/type_traits.h"

src/core/lib/promise/arena_promise.h

@@ -20,6 +20,7 @@
 #include <stdlib.h>
 
 #include <memory>
+#include <type_traits>
 #include <utility>
 
 #include "absl/meta/type_traits.h"

src/core/lib/promise/context.h

@@ -17,6 +17,7 @@
 
 #include <grpc/support/port_platform.h>
 
+#include <type_traits>
 #include <utility>
 
 #include <grpc/support/log.h>

src/core/lib/promise/detail/basic_join.h

@@ -22,6 +22,7 @@
 
 #include <array>
 #include <tuple>
+#include <type_traits>
 #include <utility>
 
 #include "absl/types/variant.h"

src/core/lib/promise/detail/promise_factory.h

@@ -17,6 +17,7 @@
 
 #include <grpc/support/port_platform.h>
 
+#include <type_traits>
 #include <utility>
 
 #include "absl/meta/type_traits.h"

src/core/lib/promise/for_each.h

@@ -17,6 +17,7 @@
 
 #include <grpc/support/port_platform.h>
 
+#include <type_traits>
 #include <utility>
 
 #include "absl/status/status.h"

src/core/lib/promise/map.h

@@ -20,6 +20,7 @@
 #include <stddef.h>
 
 #include <tuple>
+#include <type_traits>
 #include <utility>
 
 #include "absl/types/variant.h"

src/core/lib/promise/seq.h

@@ -17,6 +17,7 @@
 
 #include <grpc/support/port_platform.h>
 
+#include <type_traits>
 #include <utility>
 
 #include "src/core/lib/promise/detail/basic_seq.h"

src/core/lib/promise/try_concurrently.h

@@ -20,6 +20,7 @@
 #include <stddef.h>
 
 #include <cstdint>
+#include <type_traits>
 #include <utility>
 
 #include "absl/types/variant.h"

src/core/lib/promise/try_seq.h

@@ -17,6 +17,7 @@
 
 #include <grpc/support/port_platform.h>
 
+#include <type_traits>
 #include <utility>
 
 #include "absl/meta/type_traits.h"

src/core/lib/surface/call.cc

@@ -29,6 +29,7 @@
 #include <memory>
 #include <new>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

src/core/lib/transport/metadata_batch.h

@@ -25,6 +25,7 @@
 
 #include <cstdint>
 #include <string>
+#include <type_traits>
 #include <utility>
 
 #include "absl/container/inlined_vector.h"

src/core/lib/transport/parsed_metadata.h

@@ -21,6 +21,7 @@
 
 #include <cstdint>
 #include <string>
+#include <type_traits>
 #include <utility>
 
 #include "absl/functional/function_ref.h"

src/cpp/server/server_cc.cc

@@ -25,6 +25,7 @@
 #include <new>
 #include <sstream>
 #include <string>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

test/core/event_engine/posix/posix_endpoint_test.cc

@@ -21,6 +21,7 @@
 #include <ratio>
 #include <string>
 #include <thread>
+#include <type_traits>
 #include <vector>
 
 #include "absl/status/statusor.h"

test/core/event_engine/test_suite/client_test.cc

@@ -21,6 +21,7 @@
 #include <string>
 #include <thread>
 #include <tuple>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

test/core/event_engine/test_suite/server_test.cc

@@ -21,6 +21,7 @@
 #include <string>
 #include <thread>
 #include <tuple>
+#include <type_traits>
 #include <utility>
 #include <vector>
 

test/core/event_engine/work_queue/work_queue_fuzzer.cc

@@ -16,6 +16,7 @@
 #include <stdlib.h>
 
 #include <deque>
+#include <type_traits>
 #include <utility>
 
 #include "absl/functional/any_invocable.h"

test/core/promise/pipe_test.cc

@@ -16,6 +16,7 @@
 
 #include <memory>
 #include <tuple>
+#include <type_traits>
 #include <utility>
 
 #include "absl/status/status.h"

test/core/xds/xds_transport_fake.cc

@@ -22,6 +22,7 @@
 
 #include <functional>
 #include <memory>
+#include <type_traits>
 #include <utility>
 
 #include <grpc/event_engine/event_engine.h>

tools/distrib/iwyu_mappings.imp

@@ -4,7 +4,6 @@
     { include: ["<sys/socket.h>", "public", "\"src/core/lib/iomgr/sockaddr.h\"", "public"]},
     { include: ["<openssl/base.h>", "private", "<openssl/crypto.h>", "public"] },
     { include: ["<openssl/digest.h>", "private", "<openssl/evp.h>", "public"] },
-    { include: ["<type_traits>", "public", "<utility>", "public" ] },
     # workaround: https://github.com/include-what-you-use/include-what-you-use/issues/908
     { symbol: ["std::max", "private", "<algorithm>", "public" ] },
 ]