[all-commits] [llvm/llvm-project] 6d78c3: Move Sema's key function around and add more comments

[Reid Kleckner via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6d78c38986fa0974ea0b37e66f8cb89b256f4e0d
      https://github.com/llvm/llvm-project/commit/6d78c38986fa0974ea0b37e66f8cb89b256f4e0d
  Author: Reid Kleckner <rnk at google.com>
  Date:   2021-04-26 (Mon, 26 Apr 2021)

  Changed paths:
    M clang/include/clang/Sema/Sema.h

  Log Message:
  -----------
  Move Sema's key function around and add more comments

The previous comment was pretty obscure.