[clang] [clang] NFCI: Make ASTContext optional in the AST text dumper again (PR #94522)

[Timm Baeder via cfe-commits]

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

Can't say much about this functionally, but it fixes my problems, so LGTM from that side.

https://github.com/llvm/llvm-project/pull/94522