fix up test styling and add use-strict declarator

test/fixtures/syntax/api/blacklist/actual.js

@@ -1,5 +1,5 @@
 class Test {
   constructor() {
-    arr.map(x => x * x);
+  arr.map(x => x * x);
   }
 }

test/fixtures/syntax/api/blacklist/expected.js

@@ -1,6 +1,9 @@
-var Test = function () {
+"use strict";
+
+var Test = function() {
   var Test = function Test() {
     arr.map(x => x * x);
   };
+
   return Test;
-}();
+}();

test/fixtures/syntax/api/whitelist/actual.js

@@ -1,5 +1,5 @@
 class Test {
   constructor() {
-    arr.map(x => x * x);
+  arr.map(x => x * x);
   }
 }

test/fixtures/syntax/api/whitelist/expected.js

@@ -1,7 +1,9 @@
+"use strict";
+
 class Test {
   constructor() {
-    arr.map(function (x) {
+    arr.map(function(x) {
       return x * x;
     });
   }
-}
+}