[swift/release/6.2][clang][Darwin] Remove legacy framework search path logic in the frontend #10706
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Move the Darwin framework search path logic from InitHeaderSearch::AddDefaultIncludePaths to DarwinClang::AddClangSystemIncludeArgs. Add a new -internal-iframework cc1 argument to support the tool chain adding these paths.
Now that the tool chain is adding search paths via cc1 flag, they're only added if they exist, so the Preprocessor/cuda-macos-includes.cu test is no longer relevant.
Change Driver/driverkit-path.c and Driver/darwin-subframeworks.c to do -### style testing similar to the darwin-header-search and darwin-embedded-search-paths tests. Rename darwin-subframeworks.c to darwin-framework-search-paths.c and have it test all framework search paths, not just SubFrameworks.
Add a unit test to validate that the myriad of search path flags result in the expected search path list.
Fixes llvm#75638
rdar://149969643