solidity/test/libsolidity/syntaxTests/inheritance/override/modifier_inherited_different_signature.sol

contract A {
    modifier f(uint a) virtual { _; }
}
contract B {
    modifier f() virtual { _; }
}
contract C is A, B {
}
// ----
// TypeError: (100-122): Derived contract must override modifier "f". Two or more base classes define modifier with same name.