Ben Dunbobbin
bb709cbce5
Add a cross-project DTLTO test that checks the existing LTO configuration state serialized into the remote Clang command line. The test uses the validate.py distributor to inspect the generated DTLTO JSON. Cover all the existing forwarded options. Add paired negative checks for optional flags so the test also verifies they are not emitted when the corresponding configuration state is not set. (cherry picked from commit c012610ab9924f465baea5e62397056ea9594567)
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