Rename: cascade through delegating constructors

[rchande]

Rename one of the parameters named "y" in the following code. Callsites referencing the constructor whose parameter was renamed are updated, which is good. However, it would be awesome if we could cascade through all the delegating constructors and rename all the parameters named y that are passed in as the "y" being renamed. Similarly it would be awesome if renaming one of the fields updated the constructor parameter names as well.

class Program
{
    int y;
    int z;
    int z2;

    public Program(int y)
    {
        this.y = y;
    }

    public Program(int y, int z) : this(y: y)
    {
        this.z = z;
    }

    public Program(int y, int z, int z2) : this(y: y, z: z)
    {
        this.z2 = z2;
    }
}

[kuhlenh]

Ideally, this would apply to more than just constructor - it could apply to any case with overloaded methods. It requires some thought to get the design right, but we should definitely look at it.