Changes imported from Abseil "staging" branch:

- 5e874e644191fbf99f5636d6303de2b28b23392c Adds a absl::apply function, similar to c++17's std::apply. by Abseil Team <absl-team@google.com>
  - 16373c438d16a09725dace03ab7ba0f7c2337279 Add debugging_internal::StackTraceWorksForTest by Abseil Team <absl-team@google.com>
  - a623257aaaff8a5fba3377f34f92f319a104e444 Update absl::CondVar documentation in response to GitHub ... by Derek Mauro <dmauro@google.com>
  - 87d58a25bc4ecd46165dd1c417121c86cbc07be0 Add assert against uint128 negative bit shift undefined b... by Alex Strelnikov <strel@google.com>
  - af155c0d2a3556b56a9bcd6f9ee7416277185df8 Fix comment typos. by Abseil Team <absl-team@google.com>
  - 1824ae832eb75d447dea730b5968d952897e135a Rollback of: Add debugging_internal::StackTraceWorksForTest by Abseil Team <absl-team@google.com>
  - 97318f087ce63dd5acf1e0d3d697cd90a7d6ebfd Add debugging_internal::StackTraceWorksForTest by Abseil Team <absl-team@google.com>
  - 9dd1d17dca17f0ded3bda336b7521fd57d08a5cc Move log_severity.h out of internal. by Abseil Team <absl-team@google.com>
  - 2212bb56b1a8365d2303ff0983441298d08444e5 Internal change. by Alex Strelnikov <strel@google.com>

GitOrigin-RevId: 5e874e644191fbf99f5636d6303de2b28b23392c
Change-Id: Ic270393ac1f15866afb64617d28269cd829030f6

absl/base/BUILD.bazel

@@ -151,7 +151,6 @@ cc_library(
         "casts.h",
         "internal/atomic_hook.h",
         "internal/cycleclock.h",
-        "internal/log_severity.h",
         "internal/low_level_scheduling.h",
         "internal/per_thread_tls.h",
         "internal/raw_logging.h",
@@ -160,6 +159,7 @@ cc_library(
         "internal/thread_identity.h",
         "internal/tsan_mutex_interface.h",
         "internal/unscaledcycleclock.h",
+        "log_severity.h",
     ],
     copts = ABSL_DEFAULT_COPTS,
     deps = [

absl/base/CMakeLists.txt

@@ -20,6 +20,7 @@ list(APPEND BASE_PUBLIC_HEADERS
   "casts.h"
   "config.h"
   "dynamic_annotations.h"
+  "log_severity.h"
   "macros.h"
   "optimization.h"
   "policy_checks.h"
@@ -36,7 +37,6 @@ list(APPEND BASE_INTERNAL_HEADERS
   "internal/exception_safety_testing.h"
   "internal/identity.h"
   "internal/invoke.h"
-  "internal/log_severity.h"
   "internal/low_level_alloc.h"
   "internal/low_level_scheduling.h"
   "internal/malloc_extension.h"

absl/base/internal/raw_logging.cc

@@ -22,7 +22,7 @@
 
 #include "absl/base/config.h"
 #include "absl/base/internal/atomic_hook.h"
-#include "absl/base/internal/log_severity.h"
+#include "absl/base/log_severity.h"
 
 // We know how to perform low-level writes to stderr in POSIX and Windows.  For
 // these platforms, we define the token ABSL_LOW_LEVEL_WRITE_SUPPORTED.

absl/base/internal/raw_logging.h

@@ -20,7 +20,7 @@
 #define ABSL_BASE_INTERNAL_RAW_LOGGING_H_
 
 #include "absl/base/attributes.h"
-#include "absl/base/internal/log_severity.h"
+#include "absl/base/log_severity.h"
 #include "absl/base/macros.h"
 #include "absl/base/port.h"