Bug 5474 should not use tool tips for labels
To be consistent with other preference pages, the debug preference labels for step filtering (filter sythetic methods, etc), should not specify tool tips. Instead, the relevant information should just be in the label.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaDebugPreferencePage.java
public void init(IWorkbench workbench) {
	}
	/**
	 * @see PreferencePage#performOk()
	 * Also, notifies interested listeners
	 */
	public boolean performOk() {
		storeValues();
		getPreferenceStore().firePropertyChangeEvent(IPreferencesConstants.VARIABLE_RENDERING, new Boolean(true), new Boolean(false));
		fStepFilterContentProvider.saveFilters();
		return true;
	}
	
	/**
	 * Sets the default preferences
	 */
	protected void performDefaults() {
		setDefaultValues();
		super.performDefaults();	
	}
	
	private void setDefaultValues() {
		IPreferenceStore store = getPreferenceStore();
		
		fHexButton.setSelection(store.getDefaultBoolean(SHOW_HEX));
		fCharButton.setSelection(store.getDefaultBoolean(SHOW_CHARS));
		fUnsignedButton.setSelection(store.getDefaultBoolean(SHOW_UNSIGNED));
		
		fStepFilterContentProvider.setDefaults();
	}