Report UNUSED_PARAMETER on main parameter in 1.3+ #KT-26999 Fixed

compiler/testData/diagnostics/tests/operatorsOverloading/kt11300.kt

@@ -3,7 +3,7 @@ class A {
     fun set(<!UNUSED_PARAMETER!>x<!>: Int, <!UNUSED_PARAMETER!>y<!>: Int) {} // no `operator` modifier
 }
 
-fun main(args: Array<String>) {
+fun main() {
     val a = A()
     <!OPERATOR_MODIFIER_REQUIRED!>a[1]<!>++
     <!OPERATOR_MODIFIER_REQUIRED!>a[1]<!> += 3

compiler/testData/diagnostics/tests/operatorsOverloading/kt11300.txt

@@ -1,6 +1,6 @@
 package
 
-public fun main(/*0*/ args: kotlin.Array<kotlin.String>): kotlin.Unit
+public fun main(): kotlin.Unit
 
 public final class A {
     public constructor A()

compiler/testData/diagnostics/tests/operatorsOverloading/kt13349.kt

@@ -2,6 +2,6 @@ object Foo {
     operator fun <T> invoke() {}
 }
 
-fun main(args: Array<String>) {
+fun main() {
     Foo<Int>()
 }

compiler/testData/diagnostics/tests/operatorsOverloading/kt13349.txt

@@ -1,6 +1,6 @@
 package
 
-public fun main(/*0*/ args: kotlin.Array<kotlin.String>): kotlin.Unit
+public fun main(): kotlin.Unit
 
 public object Foo {
     private constructor Foo()