libsanitizer: Fix SPARC stacktraces
As detailed in LLVM Issue #57624
(https://github.com/llvm/llvm-project/issues/57624), a patch to
sanitizer_internal_defs.h broke SPARC stacktraces in the sanitizers.
The issue has now been fixed upstream (https://reviews.llvm.org/
D156504)
and I'd like to cherry-pick that patch.
Bootstrapped without regressions on sparc-sun-solaris2.11.
2023-07-27 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
libsanitizer:
* sanitizer_common/sanitizer_stacktrace_sparc.cpp,
sanitizer_common/sanitizer_unwind_linux_libcdep.cpp: Cherry-pick
llvm-project revision
679c076ae446af81eba81ce9b94203a273d4b88a.