Changed "jdk headers" to "jdk annotations" in test and test data directories names.

compiler/testData/codegen/jdk-annotations/arrayList.kt

@@ -0,0 +1,13 @@
+import java.util.ArrayList
+
+fun box(): String {
+    val a = ArrayList<Int>()
+    a.add(74)
+    a.add(75)
+    val i: Int = a.get(0)
+    val j: Int = a.get(1)
+    if (i != 74) return "fail 1"
+    if (j != 75) return "fail 2"
+    if (a.size() != 2) return "epic fail"
+    return "OK"
+}

compiler/testData/codegen/jdk-annotations/hashMap.kt

@@ -0,0 +1,15 @@
+import java.util.*
+
+fun box(): String {
+    val map: Map<String, Int> = HashMap<String, Int>()
+    map.put("a", 1)
+    map.put("bb", 2)
+    map.put("ccc", 3)
+    map.put("dddd", 4)
+    if (map.get("a") != 1) return "fail 1"
+    if (map.size() != 4) return "fail 2"
+    if (map.get("eeeee") != null) return "fail 3"
+    if (!map.containsKey("bb")) return "fail 4"
+    if (map.entrySet().contains("ffffff")) return "fail 5"
+    return "OK"
+}