Isolated emscripten in new lib

lib/emscripten/emtests/test_emptyclass.c

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2016 The Emscripten Authors.  All rights reserved.
+ * Emscripten is available under two separate licenses, the MIT license and the
+ * University of Illinois/NCSA Open Source License.  Both these licenses can be
+ * found in the LICENSE file.
+ */
+
+#include <stdio.h>
+
+struct Randomized {
+  Randomized(int x) { printf("*zzcheezzz*\n"); }
+};
+
+int main(int argc, const char *argv[]) {
+  new Randomized(55);
+
+  return 0;
+}