added working test casres for groovy style markup builders

stdlib/ktSrc/JavaUtilMap.kt

@@ -1,6 +1,7 @@
 package std.util
 
 import java.util.Map as JMap
+import java.util.Map.Entry as JEntry
 
 // Map APIs
 
@@ -12,6 +13,14 @@ val JMap<*,*>.size : Int
 val JMap<*,*>.empty : Boolean
     get() = isEmpty()
 
+/** Returns the key of the entry */
+val <K,V> JEntry<K,V>.key : K
+    get() = getKey()
+
+/** Returns the value of the entry */
+val <K,V> JEntry<K,V>.value : V
+    get() = getValue()
+
 /** Returns the value for the given key or returns the result of the defaultValue function if there was no entry for the given key */
 inline fun <K,V> java.util.Map<K,V>.getOrElse(key: K, defaultValue: ()-> V) : V {
   val current = this.get(key)