From 585d5182cfcd1aef891c17bdbec21522c4bc963d Mon Sep 17 00:00:00 2001
From: Siegfried Pammer <siegfriedpammer@gmail.com>
Date: Fri, 22 Apr 2016 21:00:59 +0900
Subject: [PATCH] fix build (build server does not use C# 6 yet)

---
 ILSpy/VB/ILSpyEnvironmentProvider.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ILSpy/VB/ILSpyEnvironmentProvider.cs b/ILSpy/VB/ILSpyEnvironmentProvider.cs
index 423fee7c9..cbeade5c4 100644
--- a/ILSpy/VB/ILSpyEnvironmentProvider.cs
+++ b/ILSpy/VB/ILSpyEnvironmentProvider.cs
@@ -146,7 +146,10 @@ namespace ICSharpCode.ILSpy.VB
 		
 		public bool IsMethodGroup(NRefactory.CSharp.Expression expression)
 		{
-			var methodInfo = expression.Annotation<MethodReference>()?.Resolve();
+			var r = expression.Annotation<MethodReference>();
+			if (r == null)
+				return false;
+			var methodInfo = r.Resolve();
 			if (methodInfo != null) {
 				return !methodInfo.IsGetter && !methodInfo.IsSetter;
 			}