[clang] [llvm] [clang] missing changes to the Rewriter (PR #152845)

[Matheus Izvekov via cfe-commits]

mizvekov wrote:

Though I note that we try to test any components that are actually modified, and this doesn't happen for the rewriter, so it gets no tests at all.

https://github.com/llvm/llvm-project/pull/152845