Add full-blown test for the selfContained transformer

test/fixtures/transformation/optional-self-contained/full/actual.js

@@ -0,0 +1,6 @@
+import foo, * as bar from "someModule";
+
+export const myWord = Symbol("abc");
+export function* giveWord () {
+  yield myWord;
+}

test/fixtures/transformation/optional-self-contained/full/expected.js

@@ -0,0 +1,27 @@
+"use strict";
+
+var _to5Runtime = require("6to5-runtime/6to5");
+
+var _core = require("6to5-runtime/core-js");
+
+var _regeneratorRuntime = require("6to5-runtime/regenerator");
+
+var giveWord = _regeneratorRuntime.mark(function giveWord() {
+  return _regeneratorRuntime.wrap(function giveWord$(context$1$0) {
+    while (1) switch (context$1$0.prev = context$1$0.next) {
+      case 0:
+        context$1$0.next = 2;
+        return myWord;
+      case 2:
+      case "end":
+        return context$1$0.stop();
+    }
+  }, giveWord, this);
+});
+
+exports.giveWord = giveWord;
+var foo = _to5Runtime.interopRequire(require("someModule"));
+
+var bar = _to5Runtime.interopRequireWildcard(require("someModule"));
+
+var myWord = exports.myWord = _core.Symbol("abc");