empty: clean the project
empty: clean the project

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Former-commit-id: 17ac2617bb5c711e50e59d5c16ae9e73e646c23c [formerly f3f7e0ee93d9b760c2800798664c060fca9050cb] [formerly cea3a1c3c52a526ffb646ddf8c32a3c98feee4ff [formerly 5cb4b4970e79b2b9db545f0575dffc357c56f031]]
Former-commit-id: bf39a977d265ba427538923dc5369ae710a00894 [formerly 0cf2541816ad7c2c93f7c4a260397602ccdd4b0b]
Former-commit-id: 16dd4672609a2e6d67a0e6ef108676d2f5a5cacc
PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild