[GlobalISel] Fix narrowScalar for shifts to match algorithm from SDAG

Fix typos. Use Hi and Lo prefixes for Or instead of LHS and RHS
to match names of surrounding variables.

Differential Revision: https://reviews.llvm.org/D66587

llvm-svn: 370062
7 files changed
tree: 96551934863c59eaf07664c2c3534af3bf5a8f04
  1. clang/
  2. clang-tools-extra/
  3. compiler-rt/
  4. debuginfo-tests/
  5. libclc/
  6. libcxx/
  7. libcxxabi/
  8. libunwind/
  9. lld/
  10. lldb/
  11. llgo/
  12. llvm/
  13. openmp/
  14. parallel-libs/
  15. polly/
  16. pstl/
  17. .arcconfig
  18. .clang-format
  19. .clang-tidy
  20. .gitignore
  21. README.md
README.md

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