Bug 51612 [preferences] Indent new annotation style combo
I200402102000 The combo for text styles on the annotation preference page depends on the above check box. This should be shown by indenting the combo. Nice to have for M7 since it is in N&NW.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
private String loadPreviewContentFromFile(String filename) {
		String line;
		String separator= System.getProperty("line.separator"); 
		StringBuffer buffer= new StringBuffer(512);
		BufferedReader reader= null;
		try {
			reader= new BufferedReader(new InputStreamReader(getClass().getResourceAsStream(filename)));
			while ((line= reader.readLine()) != null) {
				buffer.append(line);
				buffer.append(separator);
			}
		} catch (IOException io) {
			JavaPlugin.log(io);
		} finally {
			if (reader != null) {
				try { reader.close(); } catch (IOException e) {}
			}
		}
		return buffer.toString();
	}
	
	private void numberFieldChanged(Text textControl) {
		String number= textControl.getText();
		IStatus status= validatePositiveNumber(number);
		if (!status.matches(IStatus.ERROR))
			fOverlayStore.setValue((String) fTextFields.get(textControl), number);
		updateStatus(status);
	}
	
	private IStatus validatePositiveNumber(String number) {