Changed C# invocation result that the reduced extension method has

it's own property.

ICSharpCode.NRefactory.CSharp/Resolver/CSharpInvocationResolveResult.cs

@@ -48,6 +48,14 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 		public readonly bool IsExpandedForm;
 		
 		readonly IList<int> argumentToParameterMap;
+
+		/// <summary>
+		/// If IsExtensionMethodInvocation is true this property holds the reduced method.
+		/// </summary>
+		public IMethod ReducedMethod {
+			get;
+			internal set;
+		}
 		
 		public CSharpInvocationResolveResult(
 			ResolveResult targetResult, IParameterizedMember member,

ICSharpCode.NRefactory.CSharp/Resolver/OverloadResolution.cs

@@ -949,10 +949,8 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 			IParameterizedMember member = GetBestCandidateWithSubstitutedTypeArguments();
 			if (member == null)
 				throw new InvalidOperationException();
-			
+
-			if (this.IsExtensionMethodInvocation && member is IMethod)
+			var result = new CSharpInvocationResolveResult(
-				member =new ReducedExtensionMethod ((IMethod)member);
-			return new CSharpInvocationResolveResult(
 				this.IsExtensionMethodInvocation ? new TypeResolveResult(member.DeclaringType) : targetResolveResult,
 				member,
 				GetArgumentsWithConversions(targetResolveResult, member),
@@ -963,6 +961,9 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 				argumentToParameterMap: this.GetArgumentToParameterMap(),
 				initializerStatements: initializerStatements,
 				returnTypeOverride: returnTypeOverride);
+			if (this.IsExtensionMethodInvocation && member is IMethod)
+				result.ReducedMethod = new ReducedExtensionMethod ((IMethod)member);
+			return result;
 		}
 		#endregion
 	}