From 67a004195acbad92d32fd89898e061650cdf6c6e Mon Sep 17 00:00:00 2001
From: Ron Buckton <rbuckton@microsoft.com>
Date: Thu, 16 Feb 2017 17:42:58 -0800
Subject: [PATCH] Minor factory cleanup

---
 src/compiler/factory.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/compiler/factory.ts b/src/compiler/factory.ts
index 81346fe59ba..25ba30c06a6 100644
--- a/src/compiler/factory.ts
+++ b/src/compiler/factory.ts
@@ -1462,16 +1462,16 @@ namespace ts {
             : node;
     }
 
-    export function createJsxExpression(expression: Expression, dotDotDotToken: DotDotDotToken) {
+    export function createJsxExpression(dotDotDotToken: DotDotDotToken | undefined, expression: Expression | undefined) {
         const node = <JsxExpression>createSynthesizedNode(SyntaxKind.JsxExpression);
         node.dotDotDotToken = dotDotDotToken;
         node.expression = expression;
         return node;
     }
 
-    export function updateJsxExpression(node: JsxExpression, expression: Expression) {
+    export function updateJsxExpression(node: JsxExpression, expression: Expression | undefined) {
         return node.expression !== expression
-            ? updateNode(createJsxExpression(expression, node.dotDotDotToken), node)
+            ? updateNode(createJsxExpression(node.dotDotDotToken, expression), node)
             : node;
     }