Const-correct SelectionDAG::getAtomic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207373 91177308-0d34-0410-b5e6-96231b3b80d8
Convert SelectionDAG::getMergeValues to use ArrayRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207374 91177308-0d34-0410-b5e6-96231b3b80d8
Convert SDNode constructor to use ArrayRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207375 91177308-0d34-0410-b5e6-96231b3b80d8
Convert one last signature of getNode to take an ArrayRef of SDUse.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207376 91177308-0d34-0410-b5e6-96231b3b80d8
Convert SelectionDAG::SelectNodeTo to use ArrayRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207377 91177308-0d34-0410-b5e6-96231b3b80d8
Convert SelectionDAG::MorphNodeTo to use ArrayRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207378 91177308-0d34-0410-b5e6-96231b3b80d8
Convert SelectionDAGISel::MorphNode to use ArrayRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207379 91177308-0d34-0410-b5e6-96231b3b80d8