[roll] Roll fuchsia [superproject] Roll llvm-project/libc [libc] Provide compiler version properties (#73344)
This will be used to support conditional compilation based on compiler
version.
We adopt the same convention as
[libc++](https://github.com/llvm/llvm-project/blob/main/libcxx/include/__config)
- thx @legrosbuffle for the suggestion!
Usage:
```
#if defined(LIBC_COMPILER_CLANG_VER)
# if LIBC_COMPILER_CLANG_VER < 1500
# warning "Libc only supports Clang 15 and later"
# endif
#elif defined(LIBC_COMPILER_GCC_VER)
# if LIBC_COMPILER_GCC_VER < 1500
# warning "Libc only supports GCC 15 and later"
# endif
#elif defined(LIBC_COMPILER_MSC_VER)
# if LIBC_COMPILER_MSC_VER < 1930
# warning "Libc only supports Visual Studio 2022 RTW (17.0) and later"
# endif
#endif
```
GitOrigin-RevId: afaec2835a967d7adeb2289b4bd4acbee323ca20
Original-Revision: 89cbf9496b757f1b09b0721bff2bee40509a8993
Roller-URL: https://ci.chromium.org/b/8763515478684024689
CQ-Do-Not-Cancel-Tryjobs: true
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/951253
Original-Revision: 996cca983305f3a9f59063dc94cfea2a70e6a87d
Change-Id: Ic159c740884b229723e4d43fdfdfa22f40151e4b
diff --git a/stem b/stem
index 7f03cdc..4bac2f1 100644
--- a/stem
+++ b/stem
@@ -11,7 +11,7 @@
githooks="integration/git-hooks"
remote="https://fuchsia.googlesource.com/fuchsia"
gerrithost="https://fuchsia-review.googlesource.com"
- revision="b5c0344bb9e31617da09923b64de807ca28ddd15"/>
+ revision="996cca983305f3a9f59063dc94cfea2a70e6a87d"/>
</projects>
<hooks>
<hook name="install-environment"