[clang] Updating tests for usage of CLANG_RESOURCE_DIR (clang/test/Driver/driverkit-path.c) (1/4) (PR #197154)

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@@ -412,6 +412,11 @@ def calculate_arch_features(arch_string):
 if config.enable_threads:
     config.available_features.add("thread_support")
 
+# Add clang resource directory as a substitution
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dyung wrote:

> Yeah, looking at `Driver::GetResourcesPath` that all makes sense now, I think what you have is best. I hadn't read it close enough I had thought/hoped that CLANG_RESOURCE_DIR was like CLANG_BINARY_DIR.

Yeah, that would have been a lot easier, but sadly it was not the case. Thanks for reviewing the change!

https://github.com/llvm/llvm-project/pull/197154