j2k: flatten test cases and testData directory structure

Move j2k/test/tests -> j2k/tests, j2k/test/testData -> j2k/testData

j2k/testData/fileOrElement/annotations/annotationUsages.kt

@@ -0,0 +1,29 @@
+import javaApi.*
+
+Anon1(value = array("a"), stringArray = array("b"), intArray = intArray(1, 2), string = "x")
+Anon2(value = "a", intValue = 1, charValue = 'a')
+Anon3(e = E.A, stringArray = array(), value = *array("a", "b"))
+Anon4("x", "y")
+Anon5(1)
+Anon6(array("x", "y"))
+Anon7(javaClass<String>(), javaClass<StringBuilder>())
+Anon8(classes = *array(javaClass<String>(), javaClass<StringBuilder>()))
+class C {
+    Anon5(1) deprecated("") private val field1 = 0
+
+    Anon5(1)
+    private val field2 = 0
+
+    Anon5(1) var field3 = 0
+
+    Anon5(1)
+    var field4 = 0
+
+    Anon6(array())
+    fun foo(deprecated("") p1: Int, deprecated("") Anon5(2) p2: Char) {
+        [deprecated("")] [Anon5(3)] val c = 'a'
+    }
+
+    Anon5(1) fun bar() {
+    }
+}