restructure test directory

test/fixtures/syntax/classes/super-class/actual.js

@@ -0,0 +1 @@
+class Test extends Foo { }

test/fixtures/syntax/classes/super-class/expected.js

@@ -0,0 +1,15 @@
+var Test = function (Foo) {
+  function Test() {
+    Foo.apply(this, arguments);
+  }
+  Test.prototype = Object.create(Foo.prototype, {
+    constructor: {
+      value: Test,
+      enumerable: false,
+      writable: true,
+      configurable: true
+    }
+  });
+  Test.__proto__ = Foo;
+  return Test;
+}(Foo);