NamedArguments: Ignore when argument values are the same as the parameter name

[t-kameyama]

Fixes #4591

[marschwar]

Should those examples below be considered ok or not?

class Baz {
    private var b: Int = 42
    fun foo(a: Int, b: Int, c: Int) {}
    fun bar(a: Int, c: Int) {
        foo(a, this.b, c)
    }
}

data class Baz(val b: Int)
fun foo(a: Int, b: Int, c: Int) {}
fun bar(a: Int, c: Int, baz: Baz?) {
    baz?.let { foo(a, it.b, c) }
}

[edit] To be clear, it think they should be flagged (as it is implemented) but I would like to have a test case that verifies it.