C#: Add viable callable test for partial event.

Author: michaelnebel

csharp/ql/test/library-tests/dispatch/CallGraph.expected

@@ -270,7 +270,9 @@
 | ViableCallable.cs:679:17:679:20 | Run3 | ViableCallable.cs:637:21:637:21 | M |
 | ViableCallable.cs:679:17:679:20 | Run3 | ViableCallable.cs:646:21:646:21 | M |
 | ViableCallable.cs:679:17:679:20 | Run3 | ViableCallable.cs:648:21:648:21 | M |
-| ViableCallable.cs:707:17:707:20 | Run1 | ViableCallable.cs:702:42:702:44 | get_Property |
-| ViableCallable.cs:707:17:707:20 | Run1 | ViableCallable.cs:702:63:702:65 | set_Property |
-| ViableCallable.cs:707:17:707:20 | Run1 | ViableCallable.cs:704:49:704:51 | get_Item |
-| ViableCallable.cs:707:17:707:20 | Run1 | ViableCallable.cs:704:70:704:72 | set_Item |
+| ViableCallable.cs:709:17:709:20 | Run1 | ViableCallable.cs:698:43:698:47 | add_Event |
+| ViableCallable.cs:709:17:709:20 | Run1 | ViableCallable.cs:698:43:698:47 | remove_Event |
+| ViableCallable.cs:709:17:709:20 | Run1 | ViableCallable.cs:703:42:703:44 | get_Property |
+| ViableCallable.cs:709:17:709:20 | Run1 | ViableCallable.cs:703:63:703:65 | set_Property |
+| ViableCallable.cs:709:17:709:20 | Run1 | ViableCallable.cs:705:49:705:51 | get_Item |
+| ViableCallable.cs:709:17:709:20 | Run1 | ViableCallable.cs:705:70:705:72 | set_Item |

csharp/ql/test/library-tests/dispatch/GetADynamicTarget.expected

@@ -518,7 +518,9 @@
 | ViableCallable.cs:683:9:683:16 | call to method M | C22+TestOverloadResolution2<System.Int32>.M(Int32[]) |
 | ViableCallable.cs:687:9:687:16 | call to method M | C22+TestOverloadResolution1<System.Int32>.M(List<int>) |
 | ViableCallable.cs:687:9:687:16 | call to method M | C22+TestOverloadResolution2<System.Int32>.M(List<int>) |
-| ViableCallable.cs:712:9:712:18 | access to property Property | C23+Partial1.set_Property(object) |
-| ViableCallable.cs:715:13:715:22 | access to property Property | C23+Partial1.get_Property() |
-| ViableCallable.cs:718:9:718:12 | access to indexer | C23+Partial1.set_Item(int, object) |
-| ViableCallable.cs:721:13:721:16 | access to indexer | C23+Partial1.get_Item(int) |
+| ViableCallable.cs:714:9:714:18 | access to property Property | C23+Partial1.set_Property(object) |
+| ViableCallable.cs:717:13:717:22 | access to property Property | C23+Partial1.get_Property() |
+| ViableCallable.cs:720:9:720:12 | access to indexer | C23+Partial1.set_Item(int, object) |
+| ViableCallable.cs:723:13:723:16 | access to indexer | C23+Partial1.get_Item(int) |
+| ViableCallable.cs:726:9:726:15 | access to event Event | C23+Partial1.add_Event(EventHandler) |
+| ViableCallable.cs:729:9:729:15 | access to event Event | C23+Partial1.remove_Event(EventHandler) |

csharp/ql/test/library-tests/dispatch/ViableCallable.cs

@@ -695,13 +695,15 @@ public partial class Partial1
         public partial object Property { get; set; }
 
         public partial object this[int index] { get; set; }
+        public partial event EventHandler Event;
     }
 
     public partial class Partial1
     {
         public partial object Property { get { return null; } set { } }
 
         public partial object this[int index] { get { return null; } set { } }
+        public partial event EventHandler Event { add { } remove { } }
     }
 
     public void Run1(Partial1 p)
@@ -719,5 +721,11 @@ public void Run1(Partial1 p)
 
         // Viable callable: Partial1.get_Item(int)
         o = p[0];
+
+        // Viable callable: Partial1.add_Event
+        p.Event += (sender, e) => { };
+
+        // Viable callable: Partial1.remove_Event
+        p.Event -= (sender, e) => { };
     }
 }