[clang] [LifetimeSafety] Detect iterator invalidation through container aliases (PR #195231)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-win-x-armv7l` running on `as-builder-1` while building `clang` at step 16 "test-check-cxx-armv7-unknown-linux-gnueabihf".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/38/builds/8746

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 16 (test-check-cxx-armv7-unknown-linux-gnueabihf) failure: Test just built components: check-cxx-armv7-unknown-linux-gnueabihf completed (failure)
******************** TEST 'llvm-libc++-static.cfg.in :: std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.cauchy/eq.pass.cpp' FAILED ********************
Exit Code: 255

Command Output (stdout):
--
# COMPILED WITH
C:/buildbot/as-builder-1/x-armv7l/build/./bin/clang++.exe C:\buildbot\as-builder-1\x-armv7l\llvm-project\libcxx\test\std\numerics\rand\rand.dist\rand.dist.norm\rand.dist.norm.cauchy\eq.pass.cpp -pthread --target=armv7-unknown-linux-gnueabihf -nostdinc++ -I C:/buildbot/as-builder-1/x-armv7l/build/runtimes/runtimes-armv7-unknown-linux-gnueabihf-bins/libcxx/test-suite-install/include/c++/v1 -I C:/buildbot/as-builder-1/x-armv7l/build/runtimes/runtimes-armv7-unknown-linux-gnueabihf-bins/libcxx/test-suite-install/include/armv7-unknown-linux-gnueabihf/c++/v1 -I C:/buildbot/as-builder-1/x-armv7l/llvm-project/libcxx/test/support -std=c++26 -Werror -Wall -Wctad-maybe-unsupported -Wextra -Wshadow -Wundef -Wunused-template -Wno-unused-command-line-argument -Wno-attributes -Wno-pessimizing-move -Wno-noexcept-type -Wno-atomic-alignment -Wno-reserved-module-identifier -Wdeprecated-copy -Wdeprecated-copy-dtor -Wshift-negative-value -Wno-user-defined-literals -Wno-tautological-compare -Wsign-compare -Wunused-variable -Wunused-parameter -Wunreachable-code -Wno-unused-local-typedef -Wno-local-type-template-args -Wno-c++11-extensions -Wno-unknown-pragmas -Wno-pass-failed -Wno-mismatched-new-delete -Wno-redundant-move -Wno-self-move -Wno-nullability-completeness -flax-vector-conversions=none -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D_LIBCPP_ENABLE_EXPERIMENTAL -Wuser-defined-warnings  -lc++experimental -nostdlib++ -L C:/buildbot/as-builder-1/x-armv7l/build/runtimes/runtimes-armv7-unknown-linux-gnueabihf-bins/libcxx/test-suite-install/lib/armv7-unknown-linux-gnueabihf -lc++ -lc++abi -latomic -o C:\buildbot\as-builder-1\x-armv7l\build\runtimes\runtimes-armv7-unknown-linux-gnueabihf-bins\libcxx\test\std\numerics\rand\rand.dist\rand.dist.norm\rand.dist.norm.cauchy\Output\eq.pass.cpp.dir\t.tmp.exe
# executed command: C:/buildbot/as-builder-1/x-armv7l/build/./bin/clang++.exe 'C:\buildbot\as-builder-1\x-armv7l\llvm-project\libcxx\test\std\numerics\rand\rand.dist\rand.dist.norm\rand.dist.norm.cauchy\eq.pass.cpp' -pthread --target=armv7-unknown-linux-gnueabihf -nostdinc++ -I C:/buildbot/as-builder-1/x-armv7l/build/runtimes/runtimes-armv7-unknown-linux-gnueabihf-bins/libcxx/test-suite-install/include/c++/v1 -I C:/buildbot/as-builder-1/x-armv7l/build/runtimes/runtimes-armv7-unknown-linux-gnueabihf-bins/libcxx/test-suite-install/include/armv7-unknown-linux-gnueabihf/c++/v1 -I C:/buildbot/as-builder-1/x-armv7l/llvm-project/libcxx/test/support -std=c++26 -Werror -Wall -Wctad-maybe-unsupported -Wextra -Wshadow -Wundef -Wunused-template -Wno-unused-command-line-argument -Wno-attributes -Wno-pessimizing-move -Wno-noexcept-type -Wno-atomic-alignment -Wno-reserved-module-identifier -Wdeprecated-copy -Wdeprecated-copy-dtor -Wshift-negative-value -Wno-user-defined-literals -Wno-tautological-compare -Wsign-compare -Wunused-variable -Wunused-parameter -Wunreachable-code -Wno-unused-local-typedef -Wno-local-type-template-args -Wno-c++11-extensions -Wno-unknown-pragmas -Wno-pass-failed -Wno-mismatched-new-delete -Wno-redundant-move -Wno-self-move -Wno-nullability-completeness -flax-vector-conversions=none -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D_LIBCPP_ENABLE_EXPERIMENTAL -Wuser-defined-warnings -lc++experimental -nostdlib++ -L C:/buildbot/as-builder-1/x-armv7l/build/runtimes/runtimes-armv7-unknown-linux-gnueabihf-bins/libcxx/test-suite-install/lib/armv7-unknown-linux-gnueabihf -lc++ -lc++abi -latomic -o 'C:\buildbot\as-builder-1\x-armv7l\build\runtimes\runtimes-armv7-unknown-linux-gnueabihf-bins\libcxx\test\std\numerics\rand\rand.dist\rand.dist.norm\rand.dist.norm.cauchy\Output\eq.pass.cpp.dir\t.tmp.exe'
# EXECUTED AS
"C:/Python313/python.exe" "C:/buildbot/as-builder-1/x-armv7l/llvm-project/libcxx/utils/ssh.py" --host=ubuntu at jetson6.lab.llvm.org --execdir C:\buildbot\as-builder-1\x-armv7l\build\runtimes\runtimes-armv7-unknown-linux-gnueabihf-bins\libcxx\test\std\numerics\rand\rand.dist\rand.dist.norm\rand.dist.norm.cauchy\Output\eq.pass.cpp.dir --  C:\buildbot\as-builder-1\x-armv7l\build\runtimes\runtimes-armv7-unknown-linux-gnueabihf-bins\libcxx\test\std\numerics\rand\rand.dist\rand.dist.norm\rand.dist.norm.cauchy\Output\eq.pass.cpp.dir\t.tmp.exe
# executed command: C:/Python313/python.exe C:/buildbot/as-builder-1/x-armv7l/llvm-project/libcxx/utils/ssh.py --host=ubuntu at jetson6.lab.llvm.org --execdir 'C:\buildbot\as-builder-1\x-armv7l\build\runtimes\runtimes-armv7-unknown-linux-gnueabihf-bins\libcxx\test\std\numerics\rand\rand.dist\rand.dist.norm\rand.dist.norm.cauchy\Output\eq.pass.cpp.dir' -- 'C:\buildbot\as-builder-1\x-armv7l\build\runtimes\runtimes-armv7-unknown-linux-gnueabihf-bins\libcxx\test\std\numerics\rand\rand.dist\rand.dist.norm\rand.dist.norm.cauchy\Output\eq.pass.cpp.dir\t.tmp.exe'
# .---command stderr------------
# | kex_exchange_identification: read: Software caused connection abort
# | banner exchange: Connection to 10.1.1.144 port 22: Software caused connection abort
# `-----------------------------
# error: command failed with exit status: 255

--

********************


```

</details>

https://github.com/llvm/llvm-project/pull/195231