Move some tests from boxWithStdlib/ to box/

Move those tests which do not require neither stdlib nor reflect

compiler/testData/codegen/boxWithStdlib/dataClasses/equals/alreadyDeclared.kt

@@ -1,8 +0,0 @@
-data class A(val x: Int) {
-  override fun equals(other: Any?): Boolean = false
-}
-
-fun box(): String {
-  val a = A(0)
-  return if (a.equals(a)) "fail" else "OK"
-}

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

@@ -1,8 +0,0 @@
-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"
-}

compiler/testData/codegen/boxWithStdlib/dataClasses/equals/intarray.kt

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

compiler/testData/codegen/boxWithStdlib/dataClasses/equals/nullother.kt

@@ -1,11 +0,0 @@
-class Dummy {
-  override fun equals(other: Any?) = true
-}
-
-data class A(val v: Any?)
-
-fun box() : String {
-  val a = A(Dummy())
-  val b: A? = null
-  return if(a != b && b != a) "OK" else "fail"
-}

compiler/testData/codegen/boxWithStdlib/dataClasses/equals/sameinstance.kt

@@ -1,7 +0,0 @@
-data class A(val arg: Any? = null)
-
-fun box() : String {
-  val a = A()
-  val b = a
-  return if(b == a) "OK" else "fail"
-}