[clang] [Driver][UEFI] Enable Microsoft extensions (PR #121875)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-debian-cpp20` running on `clang-debian-cpp20` while building `clang` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/108/builds/7886

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

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/COFF_pdata_no_strip.s' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /vol/worker/clang-debian-cpp20/clang-debian-cpp20/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_pdata_no_strip.s -o /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/test/ExecutionEngine/JITLink/x86-64/Output/COFF_pdata_no_strip.s.tmp
+ /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /vol/worker/clang-debian-cpp20/clang-debian-cpp20/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_pdata_no_strip.s -o /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/test/ExecutionEngine/JITLink/x86-64/Output/COFF_pdata_no_strip.s.tmp
RUN: at line 2 has no command after substitutions
RUN: at line 3: /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/llvm-jitlink -abs __ImageBase=0xdeadbeaf -noexec /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/test/ExecutionEngine/JITLink/x86-64/Output/COFF_pdata_no_strip.s.tmp  -slab-allocate 100Kb -slab-address 0xfff00000 -slab-page-size 4096  -show-graphs='.*' -noexec 2>&1 | /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/FileCheck /vol/worker/clang-debian-cpp20/clang-debian-cpp20/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_pdata_no_strip.s
+ /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/FileCheck /vol/worker/clang-debian-cpp20/clang-debian-cpp20/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_pdata_no_strip.s
+ /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/llvm-jitlink -abs __ImageBase=0xdeadbeaf -noexec /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/test/ExecutionEngine/JITLink/x86-64/Output/COFF_pdata_no_strip.s.tmp -slab-allocate 100Kb -slab-address 0xfff00000 -slab-page-size 4096 '-show-graphs=.*' -noexec
/vol/worker/clang-debian-cpp20/clang-debian-cpp20/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_pdata_no_strip.s:8:10: error: CHECK: expected string not found in input
# CHECK: section .xdata:
         ^
<stdin>:1:1: note: scanning from here
llvm-jitlink error: Resource tracker 0x590338357aa0 became defunct
^
<stdin>:2:192: note: possible intended match here
llvm-jitlink: /vol/worker/clang-debian-cpp20/clang-debian-cpp20/llvm-project/llvm/include/llvm/ExecutionEngine/Orc/SymbolStringPool.h:285: llvm::orc::SymbolStringPool::~SymbolStringPool(): Assertion `Pool.empty() && "Dangling references at pool destruction time"' failed.
                                                                                                                                                                                               ^

Input file: <stdin>
Check file: /vol/worker/clang-debian-cpp20/clang-debian-cpp20/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_pdata_no_strip.s

-dump-input=help explains the following input dump.

Input was:
<<<<<<
           1: llvm-jitlink error: Resource tracker 0x590338357aa0 became defunct 
check:8'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
           2: llvm-jitlink: /vol/worker/clang-debian-cpp20/clang-debian-cpp20/llvm-project/llvm/include/llvm/ExecutionEngine/Orc/SymbolStringPool.h:285: llvm::orc::SymbolStringPool::~SymbolStringPool(): Assertion `Pool.empty() && "Dangling references at pool destruction time"' failed. 
check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
check:8'1                                                                                                                                                                                                    ?                                                                                 possible intended match
           3: PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. 
check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           4: Stack dump: 
check:8'0     ~~~~~~~~~~~~
           5: 0. Program arguments: /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/llvm-jitlink -abs __ImageBase=0xdeadbeaf -noexec /vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/test/ExecutionEngine/JITLink/x86-64/Output/COFF_pdata_no_strip.s.tmp -slab-allocate 100Kb -slab-address 0xfff00000 -slab-page-size 4096 -show-graphs=.* -noexec 
check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           6:  #0 0x0000590334a1ee68 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/llvm-jitlink+0xeade68) 
check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           7:  #1 0x0000590334a1c95d llvm::sys::RunSignalHandlers() (/vol/worker/clang-debian-cpp20/clang-debian-cpp20/build/bin/llvm-jitlink+0xeab95d) 
check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           .
           .
           .
>>>>>>

--

...

```

</details>

https://github.com/llvm/llvm-project/pull/121875