solidity/test/libsolidity/syntaxTests/inheritance/override/override_stricter_mutability6.sol

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contract A {
function foo() public virtual returns (uint256) {}
}
contract B is A {
function foo() public payable override virtual returns (uint256) {}
}
// ----
// TypeError 6959: (86-153): Overriding function changes state mutability from "nonpayable" to "payable".