fix up declarations being split up and use a new algorithm to determine whether or not we should align them

test/fixtures/transformation/es6-destructuring/multiple/actual.js

@@ -1 +1,2 @@
-var { x, y } = coords, foo = "bar";
+var { x, y } = coords,
+    foo = "bar";

test/fixtures/transformation/es6-modules-ignore/exports-variable/expected.js

@@ -1,7 +1,8 @@
 "use strict";
 
 var foo = 1;
-var foo = 1, bar = 2;
+var foo = 1,
+    bar = 2;
 var foo2 = function () {};
 var foo3 = undefined;
 var foo4 = 2;

test/fixtures/transformation/es7-abstract-references/private/expected.js

@@ -1,9 +1,11 @@
 "use strict";
 
 var A = new WeakMap();
-var B = new WeakMap(), C = new WeakMap();
+var B = new WeakMap(),
+    C = new WeakMap();
 var D = (function () {
-  var F = new WeakMap(), G = new WeakMap();
+  var F = new WeakMap(),
+      G = new WeakMap();
   var E = new WeakMap();
   var D = function D() {};
 
@@ -11,7 +13,8 @@ var D = (function () {
 })();
 
 var H = (function () {
-  var J = new WeakMap(), K = new WeakMap();
+  var J = new WeakMap(),
+      K = new WeakMap();
   var I = new WeakMap();
   var _class = function () {};