Fixed bug in caching ListValuesProvider.GetCount. This bug wasn't visible before the Expressions refactoring (rev. 4555) due to caching implemented in the old Expressions.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@4576 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Visualizers/GridVisualizer/ValueProviders/ListValuesProvider.cs

@@ -42,6 +42,7 @@ namespace Debugger.AddIn.Visualizers.GridVisualizer
 			if (!countEvaluated)
 			{
 				this.count = evaluateCount();
+				countEvaluated = true;
 			}
 			return this.count;
 		}
@@ -50,8 +51,7 @@ namespace Debugger.AddIn.Visualizers.GridVisualizer
 		{
 			return ObjectValue.Create(
 				targetObject.AppendIndexer(index).Evaluate(WindowsDebugger.CurrentProcess).GetPermanentReference(), 
-				// don't use PermanentReference
-				//targetObject.AppendIndexer(index), 
+				//targetObject.AppendIndexer(index), // don't use PermanentReference - possible only for IList though
 				this.listItemType, this.bindingFlags);
 		}