Generate equals/hashCode(): Support content equality from stdlib

#KT-22361 Fixed

idea/testData/codeInsight/generate/equalsWithHashCode/arrays.kt.after

@@ -1,5 +1,3 @@
-import java.util.Arrays
-
 class A(val n: IntArray, val s: Array<String>) {
     val f: Float = 1.0f
 
@@ -13,16 +11,16 @@ class A(val n: IntArray, val s: Array<String>) {
 
         other as A
 
-        if (!Arrays.equals(n, other.n)) return false
-        if (!Arrays.equals(s, other.s)) return false
+        if (!n.contentEquals(other.n)) return false
+        if (!s.contentEquals(other.s)) return false
         if (f != other.f) return false
 
         return true
     }
 
     override fun hashCode(): Int {
-        var result = Arrays.hashCode(n)
-        result = 31 * result + Arrays.hashCode(s)
+        var result = n.contentHashCode()
+        result = 31 * result + s.contentHashCode()
         result = 31 * result + f.hashCode()
         return result
     }