[all-commits] [llvm/llvm-project] 9451d9: [libc++][NFC] s/enable_if<...>::type/enable_if_t<....

[Joseph Loser via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9451d9da957a07a1a3d62bbedfa209b2b8f64bef
      https://github.com/llvm/llvm-project/commit/9451d9da957a07a1a3d62bbedfa209b2b8f64bef
  Author: Joe Loser <joeloser93 at gmail.com>
  Date:   2021-09-27 (Mon, 27 Sep 2021)

  Changed paths:
    M libcxx/include/span

  Log Message:
  -----------
  [libc++][NFC] s/enable_if<...>::type/enable_if_t<...> in span

There is some use of `enable_if<...>::type` when the rest of the file
uses `enable_if_t`. So, use `enable_if_t` consistently throughout.