Move some tests from boxWithStdlib/ to box/

Move those tests which do not require neither stdlib nor reflect

compiler/testData/codegen/box/jdk/iteratingOverHashMap.kt

@@ -0,0 +1,25 @@
+import java.util.HashMap
+
+fun box() : String {
+    if (!testIteratingOverMap1()) return "fail 1"
+    if (!testIteratingOverMap2()) return "fail 2"
+    return "OK"
+}
+
+fun testIteratingOverMap1() : Boolean {
+    val map = HashMap<String, Int>()
+    map.put("a", 1)
+    for (entry in map.entries) {
+        entry.setValue(2)
+    }
+    return map.get("a") == 2
+}
+
+fun testIteratingOverMap2() : Boolean {
+    val map : MutableMap<String, Int> = HashMap<String, Int>()
+    map.put("a", 1)
+    for (entry in map.entries) {
+        entry.setValue(2)
+    }
+    return map.get("a") == 2
+}