[clang] [clang-scan-deps] Expand response files before the argument adjuster (PR #89950)

[Jan Svoboda via cfe-commits]

jansvoboda11 wrote:

> Maybe the issue is that the DependencyOptions we pass have no target set, since the original command line doesn't have -MD (or something like that)?

No, even then we should deduce the output path: https://github.com/llvm/llvm-project/blob/a45eb628779562fac72366f594fbcdc5607b4f8d/clang/lib/Tooling/DependencyScanning/DependencyScanningWorker.cpp#L378-L400

https://github.com/llvm/llvm-project/pull/89950