Move some tests from boxWithStdlib/ to box/

Move those tests which do not require neither stdlib nor reflect

compiler/testData/codegen/box/dataClasses/equals/genericarray.kt

@@ -0,0 +1,8 @@
+data class A(val v: Array<Int>)
+
+fun box() : String {
+  val myArray = arrayOf(0, 1, 2)
+  if(A(myArray) == A(arrayOf(0, 1, 2))) return "fail"
+  if(A(myArray) != A(myArray)) return "fail 2"
+  return "OK"
+}