Constructors should check the address written in an immutable address variable is not the zero address.
Note: while it has been indicated by the sponsor input validation will be on the front-end side to relieve users from unnecessary gas spendings, this issue here concerns constructor functions, ie when the contract is deployed by the team.
11 instances include:
marketPlace = m
creator = c
protocol = p
maturity = m
cTokenAddr = c
swivel = s
protocol = _protocol
underlying = _underlying
maturity = _maturity
cToken = _cToken
redeemer = IRedeemer(_redeemer)
Add a zero address check for the immutable variables aforementioned.
