message: [XLA] Correctly make xla_computation public.
diff: # Description:
  # XLA client libraries.
  -load("//tools/build_defs:cc_public_library.bzl", "cc_public_library")
  -
  licenses(["notice"]) # Apache 2.0
  package(default_visibility = [":friends"])
  @@ -177,10 +175,11 @@ cc_library(
  ],
  )
  -cc_public_library(
  +cc_library(
  name = "xla_computation",
  srcs = ["xla_computation.cc"],
  hdrs = ["xla_computation.h"],
  + visibility = ["//visibility:public"],
  deps = [
  "//tensorflow/compiler/xla:status_macros",
  "//tensorflow/compiler/xla:util",
  