Bug 85694 [preferences][navigation] correct editor-specific context menus
I20050215-2300 (m5 test pass) - open the preferences from the context menu in a) the java editor b) the properties file editor -> the java editor does not show the spelling page -> the properties file does not show the properties editor preference page fix is easy: change AbstractDecoratedTextEditor.collectContextMenuPreferencePages to include the spelling page, remove the obsolete entry from JavaEditor, and add the properties file editor page in PropertiesFileEditor.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
if (fProjectionModelUpdater != null) {
			fProjectionModelUpdater.uninstall();
			fProjectionModelUpdater= null;
		}
		
		if (fProjectionSupport != null) {
			fProjectionSupport.dispose();
			fProjectionSupport= null;
		}
		
		
		fMarkOccurrenceAnnotations= false;
		uninstallOccurrencesFinder();
		
		uninstallOverrideIndicator();
		
		uninstallSemanticHighlighting();
		
		if (fActivationListener != null) {
			Shell shell= getEditorSite().getShell();
			if (shell != null && !shell.isDisposed())
				shell.removeShellListener(fActivationListener);
			fActivationListener= null;
		}
		
		if (fEncodingSupport != null) {
			fEncodingSupport.dispose();
			fEncodingSupport= null;
		}