Split known state from common subexpression eliminator.
Split known state from common subexpression eliminator.

arkpar/solidity,douglas-larocca/solidity,LianaHus/solidity,chriseth/solidity-doc-test,vaporry/solidity,ruchevits/solidity,ruchevits/solidity,shahankhatch/solidity,gluk256/solidity,ruchevits/solidity,ruchevits/solidity,debris/solidity,chriseth/solidity,ethers/solidity