remove es20xx prefixes from plugins and rename folders (#6575)

packages/babel-plugin-transform-function-name/test/fixtures/function-name/modules/actual.js

@@ -0,0 +1,9 @@
+import events from "events";
+
+class Template {
+  events() {
+    return events;
+  }
+}
+
+console.log(new Template().events());

packages/babel-plugin-transform-function-name/test/fixtures/function-name/modules/expected.js

@@ -0,0 +1,21 @@
+"use strict";
+
+var _events2 = babelHelpers.interopRequireDefault(require("events"));
+
+let Template =
+/*#__PURE__*/
+function () {
+  function Template() {
+    babelHelpers.classCallCheck(this, Template);
+  }
+
+  babelHelpers.createClass(Template, [{
+    key: "events",
+    value: function events() {
+      return _events2.default;
+    }
+  }]);
+  return Template;
+}();
+
+console.log(new Template().events());

packages/babel-plugin-transform-function-name/test/fixtures/function-name/modules/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["external-helpers", "transform-function-name", "transform-modules-commonjs", "transform-classes", "proposal-decorators"]
+}