[clang] [Driver][DragonFly] Fixes for linker path and command-line option handling (PR #69095)

[Fangrui Song via cfe-commits]

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@@ -26,3 +27,14 @@
 // RELOCATABLE-NOT: "-dynamic-linker"
 // RELOCATABLE-NOT: "-l
 // RELOCATABLE-NOT: {{.*}}crt{{[^./]+}}.o
+
+// Check that the new linker flags are passed to DraonFly
+// RUN: %clang --target=x86_64-unknown-dragonfly -s -### %s 2>&1 \
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MaskRay wrote:

Test all driver linker options in one %clang command.

https://github.com/llvm/llvm-project/pull/69095