Add garbage collection on shutdown.

Author: MDoerner

RetailCoder.VBE/Extension.cs

@@ -243,6 +243,16 @@ private void ShutdownAddIn()
                 _kernel = null;
             }
 
+            Debug.WriteLine("Extension: Initiating garbage collection.");
+
+            GC.Collect();
+
+            Debug.WriteLine("Extension: Initiated garbage collection.");
+
+            GC.WaitForPendingFinalizers();
+
+            Debug.WriteLine("Extension: Finalizers have run.");
+
             _isInitialized = false;
         }
 

Rubberduck.Parsing/VBA/ParseCoordinator.cs

@@ -320,7 +320,7 @@ private void ParseAll(object requestor, CancellationToken token)
                 if (watch != null && watch.IsRunning) watch.Stop();
                 if (lockTaken) Monitor.Exit(_parsingRunSyncObject);
             }
-            if (watch != null) Logger.Debug("Parsing run finished after {0}s. (thread {1}).", watch.Elapsed.Seconds, Thread.CurrentThread.ManagedThreadId);
+            if (watch != null) Logger.Debug("Parsing run finished after {0}s. (thread {1}).", watch.Elapsed.TotalSeconds, Thread.CurrentThread.ManagedThreadId);
         }
 
         private void ParseAllInternal(object requestor, CancellationToken token)

Rubberduck.VBEEditor/WindowsApi/SubclassingWindow.cs

@@ -39,10 +39,18 @@ protected SubclassingWindow(IntPtr subclassId, IntPtr hWnd)
             AssignHandle();
         }
 
+        private bool _disposed = false;
         public void Dispose()
         {
+            if (_disposed)
+            {
+                return;
+            }
+
             ReleaseHandle();
             _thisHandle.Free();
+
+            _disposed = true;
         }
 
         private void AssignHandle()