Fixup tests

src/core/lib/iomgr/ev_epoll_linux.c

src/core/lib/iomgr/ev_epollex_linux.c

src/core/lib/iomgr/ev_poll_posix.c

src/core/lib/iomgr/ev_posix.c

src/core/lib/iomgr/ev_posix.h

...y/credentials/google_default/google_default_credentials.c

src/core/lib/surface/alarm.c

src/core/lib/surface/call.c

src/core/lib/surface/completion_queue.c

src/core/lib/surface/completion_queue.h

src/core/lib/surface/server.c

test/core/end2end/fixtures/http_proxy_fixture.c

test/core/http/httpcli_test.c

test/core/http/httpscli_test.c

test/core/iomgr/endpoint_pair_test.c

test/core/iomgr/ev_epoll_linux_test.c

test/core/iomgr/fd_posix_test.c

test/core/iomgr/pollset_set_test.c

test/core/iomgr/resolve_address_posix_test.c

test/core/iomgr/resolve_address_test.c