Export of internal Abseil changes

--
739f9fb80212c21c015fec473e9e29803a156ef9 by Derek Mauro <dmauro@google.com>:

Define FlagStateInterface::~FlagStateInterface() in the translation
unit in which it is actually declared

Fixes #717

PiperOrigin-RevId: 319083605

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913ef1f23113268b22d636d3ae3b992862efdb1a by Derek Mauro <dmauro@google.com>:

Fix ABSL_LOCK_RETURNED statement

PiperOrigin-RevId: 319078667

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a43b1413da1770d638147c73e7e1693cfaf869c7 by Derek Mauro <dmauro@google.com>:

Fix redeclaration ‘absl::Cord::InlineRep::kMaxInline’, which differs in ‘constexpr’
Fixes #725

PiperOrigin-RevId: 319060910

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1ad7d491a80f6c9de78a6fc20f09b7765d224503 by Abseil Team <absl-team@google.com>:

Make absl SpinLock trivially destructible when possible

PiperOrigin-RevId: 319049456

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659ecad3578dfa669854a82279fa590002bdb37f by Derek Mauro <dmauro@google.com>:

Remove the static initialization of global variables used by absl::Mutex
as requested by Chromium

PiperOrigin-RevId: 319031204

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609c491d8bb4f8bb3b44c5a4c0bee51c583df24c by Abseil Team <absl-team@google.com>:

Add implementation of %a and %A to absl::StrFormat.

Prior to this it just fell back to sprintf.

PiperOrigin-RevId: 318888039

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5e8ae6392bcd135248aac14c4b9f2a5116868678 by Abseil Team <absl-team@google.com>:

Google-internal changes only.

PiperOrigin-RevId: 318857077

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4a2578e33e8442954e29e5f0380ddfcf0f033f0d by Greg Falcon <gfalcon@google.com>:

Change of enum constants to accommodate internal change.

PiperOrigin-RevId: 318844716

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4b578b102816260c213675759f4c15911735578a by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 318704453

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0ee82fd24d548b260c9229fa1f54571dae1dfa24 by Gennadiy Rozental <rogeeff@google.com>:

Allow lookup of retired flags.

At the moment we issue warning on attempt to find a retired flag. This way we can't even check if flag is retired without issuing the warning.

With this change we will only issue the warning if one tries to access any functionality of retired flag but it's name "is retired" status, and type.

PiperOrigin-RevId: 318605017

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3e35fe9b4c79f636fa328c59e2aabb93e29b7c99 by Abseil Team <absl-team@google.com>:

Fix error return from InstallSymbolDecorator().

PiperOrigin-RevId: 318490405

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ae46063f3eb2998cb961f62a359d932e5908a4bc by Abseil Team <absl-team@google.com>:

Do not make copies of iterated collection elements into the loop variable.

PiperOrigin-RevId: 318423139

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d06a075a12aab5f6ab98474677ce50d588b21de3 by Abseil Team <absl-team@google.com>:

add missing word making the error code better English

PiperOrigin-RevId: 318335052
GitOrigin-RevId: 739f9fb80212c21c015fec473e9e29803a156ef9
Change-Id: Id77a0a4b1959036b00555deef40e82d51884fbc1

1 files changed, 2 insertions, 1 deletions

diff --git a/absl/flags/internal/flag.h b/absl/flags/internal/flag.h
index 2cc44e00..89e43ad7 100644
--- a/absl/flags/internal/flag.h
+++ b/absl/flags/internal/flag.h
@@ -482,7 +482,8 @@ class FlagImpl final : public CommandLineFlag {
   friend class FlagState;
 
   // Ensures that `data_guard_` is initialized and returns it.
-  absl::Mutex* DataGuard() const ABSL_LOCK_RETURNED((absl::Mutex*)&data_guard_);
+  absl::Mutex* DataGuard() const
+      ABSL_LOCK_RETURNED(reinterpret_cast<absl::Mutex*>(data_guard_));
   // Returns heap allocated value of type T initialized with default value.
   std::unique_ptr<void, DynValueDeleter> MakeInitValue() const
       ABSL_EXCLUSIVE_LOCKS_REQUIRED(*DataGuard());