From 41066f55ea5656aefd8a28418e8204d67b60db1d Mon Sep 17 00:00:00 2001
From: Jesse McCarthy <git_commits@jessemccarthy.net>
Date: Mon, 11 Jan 2016 10:39:54 -0500
Subject: [PATCH 1/2] Add fixtures for deopt due to `arguments`.

---
 .../parameters/rest-arguments-deoptimisation/actual.js     | 3 +++
 .../parameters/rest-arguments-deoptimisation/expected.js   | 7 +++++++
 2 files changed, 10 insertions(+)
 create mode 100644 packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arguments-deoptimisation/actual.js
 create mode 100644 packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arguments-deoptimisation/expected.js

diff --git a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arguments-deoptimisation/actual.js b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arguments-deoptimisation/actual.js
new file mode 100644
index 0000000000..ad80b3b6b6
--- /dev/null
+++ b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arguments-deoptimisation/actual.js
@@ -0,0 +1,3 @@
+function x (...rest) {
+  arguments;
+}
diff --git a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arguments-deoptimisation/expected.js b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arguments-deoptimisation/expected.js
new file mode 100644
index 0000000000..51cfa47eb1
--- /dev/null
+++ b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arguments-deoptimisation/expected.js
@@ -0,0 +1,7 @@
+function x() {
+  for (var _len = arguments.length, rest = Array(_len), _key = 0; _key < _len; _key++) {
+    rest[_key] = arguments[_key];
+  }
+
+  arguments;
+}

From 857675c99c4d7e28446fd50926427a7e02171ded Mon Sep 17 00:00:00 2001
From: Jesse McCarthy <git_commits@jessemccarthy.net>
Date: Tue, 12 Jan 2016 16:18:07 -0500
Subject: [PATCH 2/2] Add fixtures to exercise `shadow` conditional.

---
 .../fixtures/parameters/rest-arrow-functions/actual.js   | 5 +++++
 .../fixtures/parameters/rest-arrow-functions/expected.js | 9 +++++++++
 2 files changed, 14 insertions(+)

diff --git a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arrow-functions/actual.js b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arrow-functions/actual.js
index e9d376e92b..71e7259277 100644
--- a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arrow-functions/actual.js
+++ b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arrow-functions/actual.js
@@ -22,3 +22,8 @@ function demo1(...args) {
     return args[i+0];
   };
 }
+
+var x = (...rest) => {
+  if (noNeedToWork) return 0;
+  return rest;
+};
diff --git a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arrow-functions/expected.js b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arrow-functions/expected.js
index 33eea1d670..322e79dc7e 100644
--- a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arrow-functions/expected.js
+++ b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-arrow-functions/expected.js
@@ -28,3 +28,12 @@ function demo1() {
     return args[i + 0];
   };
 }
+
+var x = function () {
+  for (var _len2 = arguments.length, rest = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+    rest[_key2] = arguments[_key2];
+  }
+
+  if (noNeedToWork) return 0;
+  return rest;
+};