Changes imported from Abseil "staging" branch:

  - b76f5d50e1cb55050ef6004d6097dfdf0a806ff5 Fix ABSL_HAVE_THREAD_LOCAL for iOS < 8.0. by Matt Armstrong <marmstrong@google.com>
  - 1dc71788a3f4ef601e03cbea59e36901479cde35 Add missing #include <intrin.h> to use __nop() on MSVC. by Derek Mauro <dmauro@google.com>
  - f63ca6c7e87a7961912995b518b93af41b04bfa1 Fix typo (implict -> implicit) by Abseil Team <absl-team@google.com>
  - 8096006dc52368f166ccd22e25fcee334e142508 Fix a typo. by Abseil Team <absl-team@google.com>
  - c673a4a59790329fab33536caed6733dc03ec2a1 Add missing ":" in TODO. by Abseil Team <absl-team@google.com>
  - 8125d214356501af0f3a8b3bb577eed083f0493f Fix comment nit. by Abseil Team <absl-team@google.com>

GitOrigin-RevId: b76f5d50e1cb55050ef6004d6097dfdf0a806ff5
Change-Id: I0168eb0c92b20ece2fe5ee54573c7720d00fd0b3

absl/base/BUILD.bazel

diff --git a/absl/base/BUILD.bazel b/absl/base/BUILD.bazel
index 5f88635..23439a0 100644
--- a/absl/base/BUILD.bazel
+++ b/absl/base/BUILD.bazel
@@ -286,6 +286,7 @@
     copts = ABSL_TEST_COPTS,
     deps = [
         ":config",
+        "//absl/synchronization:thread_pool",
         "@com_google_googletest//:gtest_main",
     ],
 )