message: Integrate LLVM at llvm/llvm-project@793b4b26039e
  Updates LLVM usage to match
  [793b4b26039e](https://github.com/llvm/llvm-project/commit/793b4b26039e)
diff: @@ -4,8 +4,8 @@ load("//third_party:repo.bzl", "tf_http_archive")
  def repo(name):
  """Imports LLVM."""
  - LLVM_COMMIT = "911a541620bcc78e637589b8623d94b8f3cdafba"
  - LLVM_SHA256 = "bc603c1ee50c45915647ae4f170caf4596737d81bd4792e05156093f43c4846b"
  + LLVM_COMMIT = "793b4b26039e461dc3142a3f667ba7c97b0ed920"
  + LLVM_SHA256 = "1349e0c706d8df46bb47fc05ba30b09f7506e24646dbf58889961d23fc7bb574"
  tf_http_archive(
  name = name,
  