Fixes VSTS Bug 1000977: Make preference dialog more resilient to extension errors

https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1000977

Author: mkrueger

main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui.Dialogs/OptionsDialog.cs

@@ -656,7 +656,13 @@ SectionPage CreatePage (TreeIter it, OptionsDialogSection section, object dataOb
 					}
 				}
 				if (pi == null) {
-					IOptionsPanel panel = node.CreatePanel ();
+					IOptionsPanel panel;
+					try {
+						panel = node.CreatePanel ();
+					} catch (Exception e) {
+						LoggingService.LogInternalError ("Error while creating options panel: " + node.Id, e);
+						continue;
+					}
 					pi = new PanelInstance ();
 					pi.Panel = panel;
 					pi.Node = node;
@@ -681,7 +687,12 @@ void CreatePageWidget (SectionPage page)
 
 			foreach (PanelInstance pi in page.Panels) {
 				if (pi.Widget == null) {
-					pi.Widget = pi.Panel.CreatePanelWidget ();
+					try {
+						pi.Widget = pi.Panel.CreatePanelWidget ();
+					} catch (Exception e) {
+						LoggingService.LogInternalError ("Error while creating panel widget for: " + pi.Node.Id, e);
+						continue;
+					}
 					if (pi.Widget == null)
 						continue;