[clang] [flang] [mlir] [clang][flang][mlir] Support -frecord-command-line option (PR #102975)

[Fangrui Song via cfe-commits]

MaskRay wrote:

Why do we need the two new files?

(added) clang/lib/Driver/ToolChains/CommonUtils.cpp (+76)
(added) clang/lib/Driver/ToolChains/CommonUtils.h (+44)

We have clang/lib/Driver/ToolChains/CommonArgs.cpp and clang/lib/Driver/ToolChain.cpp for shared code.


https://github.com/llvm/llvm-project/pull/102975