New J2K: Split old j2k and new j2k tests

j2k/testData/fileOrElement/staticMembers/PrivateStaticMembers.new.kt

@@ -1,14 +0,0 @@
-internal class A {
-
-    fun foo() {
-        privateStatic1()
-        privateStatic2()
-    }
-
-    companion object {
-        private const val s = "abc"
-
-        private fun privateStatic1() {}
-        private fun privateStatic2() {}
-    }
-}

j2k/testData/fileOrElement/staticMembers/PrivateStaticMethods1.new.kt

@@ -1,11 +0,0 @@
-internal class A {
-    fun foo() {
-        privateStatic1()
-        privateStatic2()
-    }
-
-    companion object {
-        private fun privateStatic1() {}
-        private fun privateStatic2() {}
-    }
-}

j2k/testData/fileOrElement/staticMembers/PrivateStaticMethods4.new.kt

@@ -1,16 +0,0 @@
-internal class A {
-    inner class Inner {
-        internal fun foo() {
-            privateStatic1()
-        }
-    }
-
-    fun bar() {
-        privateStatic2()
-    }
-
-    companion object {
-        private fun privateStatic1() {}
-        private fun privateStatic2() {}
-    }
-}