Fix parenthesis when call inside of new (#1169)

Fixes #1167

src/fast-path.js

@@ -243,6 +243,9 @@ FPp.needsParens = function(assumeExpressionContext) {
 
   switch (node.type) {
     case "CallExpression":
+      if (parent.type === "NewExpression" && parent.callee === node) {
+        return true;
+      }
       return false;
 
     case "SpreadElement":

tests/new_expression/__snapshots__/jsfmt.spec.js.snap

@@ -1,5 +1,18 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`call.js 1`] = `
+"new (factory())()
+new factory()()
+
+new (factory())(factory())
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+new (factory())();
+new factory()();
+
+new (factory())(factory());
+"
+`;
+
 exports[`new_expression.js 1`] = `
 "new (memoize.Cache || MapCache)
 new (typeof this == \\"function\\" ? this : Dict())

tests/new_expression/call.js

@@ -0,0 +1,4 @@
+new (factory())()
+new factory()()
+
+new (factory())(factory())