Changes

Summary

[gn build] Port b577d2df7bd (details)
[libc++] Install clang-format on CI nodes (details)
[MCAsmInfo] Delete unused doesSupportExceptionHandling (details)
[libc] Add implementations of lround[f|l] and llround[f|l]. (details)
[libc++] Fix Docker image build after installing clang-format (details)

Commit 658dc21c2df4a54ef749e0ca520747cb2b170db2 by llvmgnsyncbot [gn build] Port b577d2df7bd
	llvm/utils/gn/secondary/llvm/lib/Target/RISCV/BUILD.gn
Commit 202df6870ea2ac883ac64fab8e01c836da86978b by Louis Dionne [libc++] Install clang-format on CI nodes
	libcxx/utils/ci/macos-ci-setup
	libcxx/utils/ci/Dockerfile
Commit a593d223c50f45a25316f948ea4ed222fb244daa by i [MCAsmInfo] Delete unused doesSupportExceptionHandling ExceptionHandling:: is a bit misleading - we actually use the term for both exceptions and non-exception .eh_frame usage.
	llvm/include/llvm/MC/MCAsmInfo.h
Commit 7aeb3804c46cc6c8f291415ca09ae34021301eb8 by sivachandra [libc] Add implementations of lround[f\|l] and llround[f\|l]. A new function to MPFRWrapper has been added, which is used to set up the unit tests. Reviewed By: lntue Differential Revision: https://reviews.llvm.org/D93007
	libc/utils/FPUtil/NearestIntegerOperations.h
	libc/test/src/math/lroundl_test.cpp
	libc/src/math/llroundl.h
	libc/src/math/llroundl.cpp
	libc/config/linux/x86_64/entrypoints.txt
	libc/src/math/llroundf.h
	libc/test/src/math/llround_test.cpp
	libc/utils/MPFRWrapper/MPFRUtils.h
	libc/src/math/llroundf.cpp
	libc/test/src/math/lround_test.cpp
	libc/spec/stdc.td
	libc/src/math/CMakeLists.txt
	libc/test/src/math/llroundf_test.cpp
	libc/src/math/lroundl.cpp
	libc/src/math/lround.cpp
	libc/test/src/math/CMakeLists.txt
	libc/utils/FPUtil/CMakeLists.txt
	libc/test/src/math/RoundToIntegerTest.h
	libc/src/math/llround.h
	libc/src/math/lroundf.h
	libc/utils/MPFRWrapper/MPFRUtils.cpp
	libc/spec/spec.td
	libc/src/math/lround.h
	libc/src/math/lroundf.cpp
	libc/src/math/llround.cpp
	libc/test/src/math/lroundf_test.cpp
	libc/src/math/lroundl.h
	libc/test/src/math/llroundl_test.cpp
Commit d02eac0c000984865dd1ce2474715538f8439470 by Louis Dionne [libc++] Fix Docker image build after installing clang-format
	libcxx/utils/ci/Dockerfile