Highlight arguments in constructed contracts

[cleanunicorn]

Having a contract that inherits another contract and expects some constructor arguments, when the parent's arguments are passed, the arguments are not highlighted.

contract Parent {
    constructor (uint256 arg1_) {}
}

contract Child is Parent {
    constructor (
        uint256 arg1_, 
        uint256 arg2_
    ) 
    // does not highlight `arg1_`
    Parent(arg1_) {
        // highlights `arg2_`
        arg2_;
    }
}

I would expect to see arg1_ highlighted, similar to how arg2_ is.