Set name and flags of deleted method, property and event definitions

Author: tmat

src/Compilers/CSharp/Portable/Compiler/MethodCompiler.cs

@@ -186,7 +186,7 @@ public static void CompileMethodBodies(
                 // Deleted definitions must be emitted before PrivateImplementationDetails are frozen since
                 // it may add new members to it. All changes to PrivateImplementationDetails are additions,
                 // so we don't need to create deleted method defs for those.
-                moduleBeingBuiltOpt.CreateDeletedMethodDefinitions(diagnostics.DiagnosticBag);
+                moduleBeingBuiltOpt.CreateDeletedMemberDefinitions(diagnostics.DiagnosticBag);
 
                 // all threads that were adding methods must be finished now, we can freeze the class:
                 var privateImplClass = moduleBeingBuiltOpt.FreezePrivateImplementationDetails();

src/Compilers/CSharp/Portable/Symbols/EventSymbol.cs

@@ -7,14 +7,15 @@
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
+using Microsoft.CodeAnalysis.Symbols;
 using Roslyn.Utilities;
 
 namespace Microsoft.CodeAnalysis.CSharp.Symbols
 {
     /// <summary>
     /// Represents an event.
     /// </summary>
-    internal abstract partial class EventSymbol : Symbol
+    internal abstract partial class EventSymbol : Symbol, IEventSymbolInternal
     {
         // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
         // Changes to the public interface of this class should remain synchronized with the VB version.