[llvm] [BOLT][DWARF][NFC] Add option to specify DW_AT_comp_dir (PR #79395)

[Maksim Panchenko via llvm-commits]

================
@@ -366,6 +366,12 @@ static cl::opt<bool> AlwaysConvertToRanges(
     cl::desc("This option is for testing purposes only. It forces BOLT to "
              "convert low_pc/high_pc to ranges always."),
     cl::ReallyHidden, cl::init(false), cl::cat(BoltCategory));
+
+cl::opt<std::string> CompDirOverride(
+    "comp-dir-override",
+    cl::desc("Overrides DW_AT_comp_dir which is used with DW_AT_dwo_name to "
+             "construct a path to *.dwo files."),
----------------
maksfb wrote:

To make this options description more user-friendly, would something like "Specify alternative location to search for *.dwo files" be accurate enought?

https://github.com/llvm/llvm-project/pull/79395