[clang] [lldb] [clang] Add -fno-debug-record-sysroot (PR #192541)

[Keith Smiley via cfe-commits]

keith wrote:

applied your patch, we'll see what CI things. my understanding from the code was definitely that lldb's fallback behavior would actually be the ideal for my case anyways, since I'm trying to normalize across arbitrary Xcode install paths, and really lldb using the one that is selected at time of debug is what I'd want

https://github.com/llvm/llvm-project/pull/192541