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

compiler/testData/diagnostics/tests/inference/upperBounds/kt2856.kt

@@ -11,7 +11,7 @@ public inline fun <K,V1, V: V1> Map<K,V>.getOrElse1(key: K, defaultValue: ()-> V
     }
 }
 
-fun main(args: Array<String>) {
+fun main() {
     val map = HashMap<Int, Int>()
     println(map.getOrElse1(2, { null })) // Error
 }

compiler/testData/diagnostics/tests/inference/upperBounds/kt2856.txt

@@ -1,7 +1,7 @@
 package
 
 package d {
-    public fun main(/*0*/ args: kotlin.Array<kotlin.String>): kotlin.Unit
+    public fun main(): kotlin.Unit
     public fun println(/*0*/ message: kotlin.Any?): kotlin.Unit
     public inline fun </*0*/ K, /*1*/ V1, /*2*/ V : V1> kotlin.collections.Map<K, V>.getOrElse1(/*0*/ key: K, /*1*/ defaultValue: () -> V1): V1
 }