From 904091e6ea7be2931bd2a82ea083742894b39ac4 Mon Sep 17 00:00:00 2001
From: Ryan Cavanaugh <RyanCavanaugh@users.noreply.github.com>
Date: Fri, 26 Feb 2016 14:41:49 -0800
Subject: [PATCH] Fix duplicate errors in JSDoc function types with anon
 parameters

Fixes #6993
---
 src/compiler/binder.ts                            |  1 +
 tests/cases/fourslash/jsDocFunctionSignatures4.ts | 11 +++++++++++
 2 files changed, 12 insertions(+)
 create mode 100644 tests/cases/fourslash/jsDocFunctionSignatures4.ts

diff --git a/src/compiler/binder.ts b/src/compiler/binder.ts
index 933381afa92..caddd68dd21 100644
--- a/src/compiler/binder.ts
+++ b/src/compiler/binder.ts
@@ -749,6 +749,7 @@ namespace ts {
                 case SyntaxKind.GetAccessor:
                 case SyntaxKind.SetAccessor:
                 case SyntaxKind.FunctionType:
+                case SyntaxKind.JSDocFunctionType:
                 case SyntaxKind.ConstructorType:
                 case SyntaxKind.FunctionExpression:
                 case SyntaxKind.ArrowFunction:
diff --git a/tests/cases/fourslash/jsDocFunctionSignatures4.ts b/tests/cases/fourslash/jsDocFunctionSignatures4.ts
new file mode 100644
index 00000000000..e2b443d8d40
--- /dev/null
+++ b/tests/cases/fourslash/jsDocFunctionSignatures4.ts
@@ -0,0 +1,11 @@
+///<reference path="fourslash.ts" />
+
+// @allowNonTsExtensions: true
+// @Filename: Foo.js
+
+//// /** @param {function ({OwnerID:string,AwayID:string}):void} x
+////   * @param {function (string):void} y */
+//// function fn(x, y) { }
+
+verify.numberOfErrorsInCurrentFile(0);
+