[lld] [ELF] Support DW_EH_PE_sdata8 encoding in .eh_frame_hdr (PR #179089)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-x86_64-debian` running on `lldb-x86_64-debian` while building `lld` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/162/builds/40190

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

```
Step 6 (test) failure: build (failure)
...
PASS: lldb-api :: functionalities/dead-strip/TestDeadStrip.py (610 of 3375)
PASS: lldb-api :: commands/settings/quoting/TestQuoting.py (611 of 3375)
PASS: lldb-api :: tools/lldb-dap/cancel/TestDAP_cancel.py (612 of 3375)
PASS: lldb-api :: functionalities/target_var/TestTargetVar.py (613 of 3375)
PASS: lldb-api :: lang/cpp/auto/TestCPPAuto.py (614 of 3375)
PASS: lldb-api :: tools/lldb-dap/launch/TestDAP_launch_failing_launch_commands.py (615 of 3375)
PASS: lldb-api :: lang/cpp/wchar_t/TestCxxWCharT.py (616 of 3375)
PASS: lldb-api :: lang/c/inlines/TestRedefinitionsInInlines.py (617 of 3375)
PASS: lldb-api :: commands/expression/codegen-crash-import-def-arraytype-element/TestImportDefinitionArrayType.py (618 of 3375)
UNRESOLVED: lldb-api :: python_api/run_locker/TestRunLocker.py (619 of 3375)
******************** TEST 'lldb-api :: python_api/run_locker/TestRunLocker.py' FAILED ********************
Script:
--
/usr/bin/python3 /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/./lib --env LLVM_INCLUDE_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/include --env LLVM_TOOLS_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/./bin --arch x86_64 --build-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex --lldb-module-cache-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/lldb --compiler /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/clang --dsymutil /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/dsymutil --make /usr/bin/gmake --llvm-tools-dir /home/worker/2.0.1/lldb-x86_64-debian/build/./bin --lldb-obj-root /home/worker/2.0.1/lldb-x86_64-debian/build/tools/lldb --lldb-libs-dir /home/worker/2.0.1/lldb-x86_64-debian/build/./lib --cmake-build-type Release -t /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/python_api/run_locker -p TestRunLocker.py
--
Exit Code: -6

Command Output (stdout):
--
lldb version 23.0.0git (https://github.com/llvm/llvm-project.git revision d53bf41395873918d0759f5ed17876143c64a635)
  clang revision d53bf41395873918d0759f5ed17876143c64a635
  llvm revision d53bf41395873918d0759f5ed17876143c64a635

--
Command Output (stderr):
--
Change dir to: /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/python_api/run_locker
runCmd: settings clear --all

output: 

runCmd: settings set symbols.enable-external-lookup false

output: 

runCmd: settings set target.inherit-tcc true

output: 

runCmd: settings set target.disable-aslr false

output: 

runCmd: settings set target.detach-on-error false

output: 

runCmd: settings set target.auto-apply-fixits false


```

</details>

https://github.com/llvm/llvm-project/pull/179089