[llvm] [dsymutil] Filter our swiftinterface files from the toolchain. (PR #71205)

[Augusto Noronha via llvm-commits]

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@@ -167,6 +167,21 @@ void CompileUnit::cleanupDataAfterClonning() {
   getOrigUnit().clear();
 }
 
+/// Make a best effort to guess the
+/// Xcode.app/Contents/Developer/Toolchains/ path from an SDK path.
+static SmallString<128> guessToolChainBaseDir(StringRef SysRoot) {
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augusto2112 wrote:

Is there unify this function since it exists both in `DWARFLinker.cpp` and here?

https://github.com/llvm/llvm-project/pull/71205