Fixed SD2-520: Changes to Treat Warnings as Errors option ignored

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@679 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/Base/Project/Src/Gui/Dialogs/OptionPanels/ProjectOptions/AbstractBuildOptions.cs

@@ -76,6 +76,13 @@ namespace ICSharpCode.SharpDevelop.Gui.OptionPanels
 			b = helper.BindString("specificWarningsTextBox", "WarningsAsErrors"); // must be saved AFTER TreatWarningsAsErrors
 			b.RegisterLocationButton(locationButton);
 			
+			EventHandler setDirty = delegate {
+				helper.IsDirty = true;
+			};
+			Get<RadioButton>("none").CheckedChanged += setDirty;
+			Get<RadioButton>("specificWarnings").CheckedChanged += setDirty;
+			Get<RadioButton>("all").CheckedChanged += setDirty;
+			
 			Get<RadioButton>("specificWarnings").CheckedChanged  += new EventHandler(UpdateWarningChecked);
 			
 			UpdateWarningChecked(this, EventArgs.Empty);

src/Main/Base/Project/Src/Gui/Dialogs/ProjectOptionsView.cs

@@ -98,6 +98,8 @@ namespace ICSharpCode.SharpDevelop.Project.Dialogs
 					AddOptionPanels(descriptor.ChildDialogPanelDescriptors);
 				}
 			}
+			// re-evaluate dirty because option pages can be dirty when they are newly loaded
+			PanelDirtyChanged(null, null);
 		}
 		
 		void PanelDirtyChanged(object sender, EventArgs e)