WebKit JIT ByteCodeParser::handleIntrinsicCall Type Confusion

WebKit: JIT: Type confusion bugs in ByteCodeParser::handleIntrinsicCall CVE-2018-4382 case ArrayPushIntrinsic: ... if staticcastargumentCountIncludingThis = MINSPARSEARRAYINDEX return false; ArrayMode arrayMode = getArrayModemcurrentInstructionOPCODELENGTHopcall - 2.u.arrayProfile, Array::Write;...