Update to LLVM 17.0.0 RC1
    
    This is also a squashed merge commit from upstream-snapshot (commit ID
    793e0363467b802a) into rawhide whose most important commits from
    upstream-snapshot are:
    
    Konrad Kleine (21):
          Generated patches again rebased llvm-project
          Prepared lld for snapshot builds
          Fix indention
          Rebased patches from streamline branch of llvm-project
          Fix installed (but unpacked) file(s) found for ld64.ldd.darwinold
          Disable checks when building snapshots
          Experiment to find out how version suffix may look like
          Make download path for snapshot sources-easily adjustable
          Fix RPM build error:
          Use new llvm_snashot_changelog_entry macro
          Don't install unittests dir because as of https://reviews.llvm.org/D114842 that no longer exist
          Try fix RPM build
          Use llvm_snapshot_version_suffix
          Compile with DWARFv4
          Fix: cp: cannot stat 'redhat-linux-build/lib64/libgtest*so*': No such file or directory
          Merge remote-tracking branch 'upstream/rawhide' into upstream-snapshot
          Make lld use the llvm-snapshot-builder
          Use %{llvm_snapshot_extra_source_tags} macro
          Rebase patch
          Fix error by adding cmake tarball
          Merge remote-tracking branch 'origin/rawhide' into upstream-snapshot
    
    Nikita Popov (1):
          Remove Unit site.cfg.py handling
    
    Tom Stellard (3):
          Remove lld-test package
          Drop gtest detection patch
          copr: Install llvm-snapshot-builder from the local COPR project