Export of internal Abseil changes

--
034c30a00c64d93b9fcbc9d99a0a33801544d741 by Gennadiy Rozental <rogeeff@google.com>:

Split private handle interfaces accessor into a separate target with private visibility.

PiperOrigin-RevId: 310391488

--
6f6ca869309b17900b90849e08488ce7f7b0193a by Derek Mauro <dmauro@google.com>:

Remove __CLANG_SUPPORT_DYN_ANNOTATION__, which is a symbol defined by us
to be true in all builds

PiperOrigin-RevId: 310385325

--
ed5c1880c86973c000e826a3006b38e53ab3ed52 by Samuel Benzaquen <sbenza@google.com>:

Add tests to exercise extreme width and precision, and fix the overflows from
it.

PiperOrigin-RevId: 310224957
GitOrigin-RevId: 034c30a00c64d93b9fcbc9d99a0a33801544d741
Change-Id: I6c89a3c89ae92fa617c696044148ce9a79bcdda8
diff --git a/absl/flags/parse.cc b/absl/flags/parse.cc
index cc13490..66a28a9 100644
--- a/absl/flags/parse.cc
+++ b/absl/flags/parse.cc
@@ -39,6 +39,7 @@
 #include "absl/flags/internal/commandlineflag.h"
 #include "absl/flags/internal/flag.h"
 #include "absl/flags/internal/parse.h"
+#include "absl/flags/internal/private_handle_accessor.h"
 #include "absl/flags/internal/program_name.h"
 #include "absl/flags/internal/registry.h"
 #include "absl/flags/internal/usage.h"
@@ -298,7 +299,7 @@
     ABSL_FLAGS_INTERNAL_BUILTIN_TYPES(IGNORE_TYPE)
 #undef IGNORE_TYPE
 
-    flags_internal::PrivateHandleInterface::CheckDefaultValueParsingRoundtrip(
+    flags_internal::PrivateHandleAccessor::CheckDefaultValueParsingRoundtrip(
         *flag);
   });
 #endif
@@ -697,7 +698,7 @@
     if (flag->IsRetired()) continue;
 
     std::string error;
-    if (!flags_internal::PrivateHandleInterface::ParseFrom(
+    if (!flags_internal::PrivateHandleAccessor::ParseFrom(
             flag, value, SET_FLAGS_VALUE, kCommandLine, &error)) {
       flags_internal::ReportUsageError(error, true);
       success = false;