Merge pull request #20510 from jtattermusch/bazel_test_on_mac

src/core/lib/iomgr/endpoint_pair_posix.cc

src/core/lib/iomgr/port.h

src/core/lib/iomgr/udp_server.cc

test/core/backoff/backoff_test.cc

test/core/bad_client/tests/large_metadata.cc

test/core/bad_connection/close_fd_test.cc

test/core/end2end/dualstack_socket_test.cc

test/core/handshake/client_ssl.cc

test/core/handshake/verify_peer_options.cc

test/core/iomgr/BUILD

test/core/iomgr/fd_posix_test.cc

test/core/iomgr/socket_utils_test.cc

test/core/iomgr/tcp_client_posix_test.cc

test/core/iomgr/tcp_posix_test.cc

test/core/iomgr/tcp_server_posix_test.cc

test/core/iomgr/udp_server_test.cc

test/core/security/credentials_test.cc

test/core/surface/byte_buffer_reader_test.cc

test/core/tsi/alts/handshaker/alts_tsi_utils_test.cc

...ro_copy_frame_protector/alts_grpc_record_protocol_test.cc