Fix S2234 FN: this and base constructors

[antonioaversa]

The current implementation of S2234 doesn't take into account constructor invocations,

class SomeClass
{
    public SomeClass(int a, int b) { }
    public SomeClass(int a, int b) : this(b, a) { } // FN: ctor params are inverted
}

Notice that invocations via new are supported.

void Test(int a, int b, int c)
{
    _ = new SomeClass(b, a);                  // Noncompliant, inverted
}

class SomeClass
{
    public SomeClass(int a, int b) { }        // Secondary
}