Merge pull request #8580 from DustinCampbell/issue-162325

Fix bug in IVsSimpleLibrary2.CreateNavInfo(...) implementation where we were clearing string builders before they were used

src/VisualStudio/Core/Def/Implementation/Library/ObjectBrowser/AbstractObjectBrowserLibraryManager.cs

@@ -395,12 +395,12 @@ protected override int CreateNavInfo(SYMBOL_DESCRIPTION_NODE[] rgSymbolNodes, ui
                 }
             }
 
-            SharedPools.Default<StringBuilder>().ClearAndFree(namespaceName);
-            SharedPools.Default<StringBuilder>().ClearAndFree(className);
-
             // TODO: Make sure we pass the right value for Visual Basic.
             ppNavInfo = this.LibraryService.NavInfoFactory.Create(libraryName, referenceOwnerName, namespaceName.ToString(), className.ToString(), memberName);
 
+            SharedPools.Default<StringBuilder>().ClearAndFree(namespaceName);
+            SharedPools.Default<StringBuilder>().ClearAndFree(className);
+
             return VSConstants.S_OK;
         }