add optimisation.react.constantElements transformer - facebook/react#3228

test/core/fixtures/transformation/optimisation.react.constant-elements/inline-elements/actual.js

@@ -0,0 +1,10 @@
+function render() {
+  return <foo />;
+}
+
+function render() {
+  var text = getText();
+  return function () {
+    return <foo>{text}</foo>;
+  };
+}

test/core/fixtures/transformation/optimisation.react.constant-elements/inline-elements/expected.js

@@ -0,0 +1,25 @@
+"use strict";
+
+var _ref = {
+  type: "foo",
+  ref: null,
+  props: {},
+  key: null
+};
+function render() {
+  return _ref;
+}
+
+function render() {
+  var text = getText();
+  var _ref = {
+    type: "foo",
+    ref: null,
+    children: [text],
+    props: {},
+    key: null
+  };
+  return function () {
+    return _ref;
+  };
+}

test/core/fixtures/transformation/optimisation.react.constant-elements/inline-elements/options.json

@@ -0,0 +1,3 @@
+{
+  "optional": ["optimisation.react.constantElements", "optimisation.react.inlineElements"]
+}