[clang] [clang-repl] Address error recovery fixing infinite loop while parsing (PR #127569)

[Vassil Vassilev via cfe-commits]

https://github.com/vgvassilev approved this pull request.

LGTM, however, I'd like to wait for @AaronBallman's review, too.

https://github.com/llvm/llvm-project/pull/127569