JS lib: introduced different output strategies, and chose them depending of environment.

#KT-2994 Fixed

js/js.tests/test/org/jetbrains/k2js/test/rhino/RhinoUtils.java

@@ -140,6 +140,9 @@ public final class RhinoUtils {
         try {
             ScriptableObject scope = getScope(ecmaVersion, context, jsLibraries);
             putGlobalVariablesIntoScope(scope, variables);
+
+            context.evaluateString(scope, "Kotlin.out = new Kotlin.BufferedOutput();", "setup Kotlin.out", 0, null);
+
             for (String filename : fileNames) {
                 runFileWithRhino(filename, context, scope);
                 //String problems = lintIt(context, filename, scope);

js/js.tests/test/org/jetbrains/k2js/test/semantics/NativeInteropTest.java

@@ -130,4 +130,8 @@ public final class NativeInteropTest extends SingleFileTranslationTest {
     public void testNestedElements() throws Exception {
         checkFooBoxIsOk();
     }
+
+    public void testPrint() throws Exception {
+        checkFooBoxIsOk();
+    }
 }