FunctionNaming should ignore anonymous functions

[3flex]

Expected Behavior of the rule

This example, from the Kotlin docs, is not flagged by FunctionNaming rule at fun(value: Int):

        fun foo() {
            listOf(1, 2, 3, 4, 5).forEach(fun(value: Int) {
                if (value == 3) return  // local return to the caller of the anonymous fun, i.e. the forEach loop
                print(value)
            })
            print(" done with anonymous function")
        }

Context

Anonymous functions by definition do not have a name.