Export of internal Abseil changes

--
f4c7e510922668c68be4aa79a00867c3d3ca9f95 by Derek Mauro <dmauro@google.com>:

Many improvements to LeakChecker builds

The presence of the LeakChecker is now detected when possible. GCC
users using LeakChecker in standalone mode still need to use
-DLEAK_CHECKER. This is now documented in the header.

The hacky targets used for testing leak checking have been removed in
favor of testing in AddressSanitizer mode on Kokoro.

Fixes #885
Fixes #1153

PiperOrigin-RevId: 441203393
Change-Id: Ibe64ef6b104bcaf31839ff7184e558cc86abdd1c

--
5c70a23aa83b8152ab95d2cf21662fc63c80ef7d by Abseil Team <absl-team@google.com>:

Add a benchmark for stacktrace

PiperOrigin-RevId: 441196473
Change-Id: I4c9aa2e797aa2cae09abfaaee3abe5c09eb62fc4

--
50b406052273b9d5bad04a7860a96e4d5d956c02 by Abseil Team <absl-team@google.com>:

Internal change.

PiperOrigin-RevId: 441114481
Change-Id: I667af7a50d5631ca91289dd24c91ba90233e0184

--
568b4eaac120b420bce5290179d407d2b57d5bae by Dino Radakovic <dinor@google.com>:

Internal change

PiperOrigin-RevId: 440894155
Change-Id: Ia587ffc65a8321126585fb363b7c0ca8cc2a0da2

--
d53948eace4f3a10ac5a6c1496dc51b81adc412c by Abseil Team <absl-team@google.com>:

Explicitly give internal linkage to symbols which are not used outside of their
translation units.

PiperOrigin-RevId: 440424519
Change-Id: I531c5e229d443375483b7550a34f48042589a99b
GitOrigin-RevId: f4c7e510922668c68be4aa79a00867c3d3ca9f95

1 files changed, 2 insertions, 0 deletions

diff --git a/absl/strings/str_format_test.cc b/absl/strings/str_format_test.cc
index c60027ad..804e6c22 100644
--- a/absl/strings/str_format_test.cc
+++ b/absl/strings/str_format_test.cc
@@ -719,6 +719,7 @@ TEST_F(FormatWrapperTest, ParsedFormat) {
 ABSL_NAMESPACE_END
 }  // namespace absl
 
+namespace {
 using FormatExtensionTest = ::testing::Test;
 
 struct Point {
@@ -750,6 +751,7 @@ TEST_F(FormatExtensionTest, AbslFormatConvertExample) {
   // FormatUntyped will return false for bad character.
   EXPECT_FALSE(absl::FormatUntyped(&actual, f1, {absl::FormatArg(p)}));
 }
+}  // namespace
 
 // Some codegen thunks that we can use to easily dump the generated assembly for
 // different StrFormat calls.