Commits on Oct 21, 2019

1. [Monorepo fixup] reset untracked directory contents to match apple/st… …

   …able/20190619
   
   The monorepo conversion for the swift/master branch brought in contents in
   untracked directory that landed after the apple/stable/20190619 branch was cut.
   
   This commit fixes this content by resetting the sub-trees to match apple/stable/20190619.
   
   Here's how this commit was contructed:
   
   Step 1: reset the subtrees to match the apple/stable/20190619 state
   
   repos="debuginfo-tests libclc libcxxabi libunwind lld llgo openmp parallel-libs polly pstl"
   
   for repo in $repos
   do
     git rm -rf $repo > /dev/null
     latest_commit=$(git rev-list HEAD -n1 -- $repo)
     tree=$(git rev-parse origin/apple/stable/20190619:$repo)
     git read-tree --prefix=$repo $tree
     echo "LATEST COMMIT FOR $repo -p $latest_commit"
   done
   
   Step 2: construct an octopus merge commit with new subtrees
   
   tree=$(git write-tree)
   git commit-tree -p HEAD -p ... -m "[Monorepo fixup] ..." $tree

   

   hyp committed Oct 21, 2019
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