Replace is Array<T> with .isArrayOf<T>()

compiler/testData/diagnostics/tests/cast/IsArray.kt

@@ -1 +1 @@
-fun f(a: Array<out Number>) = a is Array<Int>
+fun f(a: Array<out Number>) = a.isArrayOf<Int>()

compiler/testData/diagnostics/tests/cast/IsReified.kt

@@ -1 +1 @@
-fun ff(a: Any) = a is Array<String>
+fun ff(a: Any) = a is Array<*> && <!DEBUG_INFO_SMARTCAST!>a<!>.isArrayOf<String>()