[lld] [llvm] [DTLTO][LLD][COFF] Add support for Integrated Distributed ThinLTO (PR #148594)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-aarch64-windows` running on `linaro-armv8-windows-msvc-05` while building `cross-project-tests,lld` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/141/builds/10291

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

```
Step 6 (test) failure: build (failure)
...
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/2/12 (2271 of 2280)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/3/12 (2272 of 2280)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/4/12 (2273 of 2280)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/5/12 (2274 of 2280)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/6/12 (2275 of 2280)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/7/12 (2276 of 2280)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/8/12 (2277 of 2280)
PASS: lldb-unit :: ValueObject/./LLDBValueObjectTests.exe/9/12 (2278 of 2280)
PASS: lldb-unit :: tools/lldb-server/tests/./LLDBServerTests.exe/0/1 (2279 of 2280)
TIMEOUT: lldb-unit :: Host/./HostTests.exe/8/12 (2280 of 2280)
******************** TEST 'lldb-unit :: Host/./HostTests.exe/8/12' FAILED ********************
Script(shard):
--
GTEST_OUTPUT=json:C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\tools\lldb\unittests\Host\.\HostTests.exe-lldb-unit-16324-8-12.json GTEST_SHUFFLE=0 GTEST_TOTAL_SHARDS=12 GTEST_SHARD_INDEX=8 C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\tools\lldb\unittests\Host\.\HostTests.exe
--

Note: This is test shard 9 of 12.

[==========] Running 7 tests from 7 test suites.

[----------] Global test environment set-up.

[----------] 1 test from FileSystemTest

[ RUN      ] FileSystemTest.Readable

[       OK ] FileSystemTest.Readable (0 ms)

[----------] 1 test from FileSystemTest (0 ms total)



[----------] 1 test from HostInfoTest

[ RUN      ] HostInfoTest.GetProgramFileSpec

[       OK ] HostInfoTest.GetProgramFileSpec (1 ms)

[----------] 1 test from HostInfoTest (1 ms total)



[----------] 1 test from MainLoopTest

[ RUN      ] MainLoopTest.PipeDelayBetweenRegisterAndRun


--
exit: 15

```

</details>

https://github.com/llvm/llvm-project/pull/148594