From 254af55204ebc18a8ea3576085350615c9adb0c8 Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <drosen@microsoft.com>
Date: Fri, 18 Sep 2015 12:19:29 -0700
Subject: [PATCH] Added missing predicate for contextual types of parameters.

---
 src/compiler/checker.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index db6f2377a36..2aee597092d 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -6574,8 +6574,8 @@ namespace ts {
 
         // Return contextual type of parameter or undefined if no contextual type is available
         function getContextuallyTypedParameterType(parameter: ParameterDeclaration): Type {
-            if (isFunctionExpressionOrArrowFunction(parameter.parent)) {
-                let func = <FunctionExpression>parameter.parent;
+            let func = parameter.parent;
+            if (isFunctionExpressionOrArrowFunction(func) || isObjectLiteralMethod(func)) {
                 if (isContextSensitive(func)) {
                     let contextualSignature = getContextualSignature(func);
                     if (contextualSignature) {