ExtractAnonymousMethodAction: Fixed "fails to insert generated method when anonymous method is not in a method" issue

ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/ExtractAnonymousMethodAction.cs

@@ -80,7 +80,7 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 				{
 					var identifier = new IdentifierExpression ("Method");
 					script.Replace (node, identifier);
-					script.InsertBefore (node.GetParent<MethodDeclaration> (), method);
+					script.InsertBefore (node.GetParent<EntityDeclaration> (), method);
 					script.Link (method.NameToken, identifier);
 				});
 		}

ICSharpCode.NRefactory.Tests/CSharp/CodeActions/ExtractAnonymousMethodTests.cs

@@ -135,6 +135,24 @@ class TestClass
 		int j = 1;
 		System.Func<int, int> a = $delegate (int i) { return i + j; };
 	}
+}");
+		}
+
+		[Test]
+		public void TestLambdaInField ()
+		{
+			Test<ExtractAnonymousMethodAction> (@"
+class TestClass
+{
+	System.Action<int> a = i $=>  { i++; };
+}", @"
+class TestClass
+{
+	void Method (int i)
+	{
+		i++;
+	}
+	System.Action<int> a = Method;
 }");
 		}
 	}