Bug 40772 [plan item] Smart tab on empty lines
When having the caret on an empty line, pressing tab cleans up the line and sets the caret it the right indentation column.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/JdtActionConstants.java
/**
	 * Navigate menu: name of standard Goto Type global action
	 * (value <code>"org.eclipse.jdt.ui.actions.GoToType"</code>).
	 */
	public static final String GOTO_TYPE= "org.eclipse.jdt.ui.actions.GoToType"; 
	
	/**
	 * Navigate menu: name of standard Goto Package global action
	 * (value <code>"org.eclipse.jdt.ui.actions.GoToPackage"</code>).
	 */
	public static final String GOTO_PACKAGE= "org.eclipse.jdt.ui.actions.GoToPackage"; 
	
	/**
	 * Navigate menu: name of standard Open global action
	 * (value <code>"org.eclipse.jdt.ui.actions.Open"</code>).
	 */
	public static final String OPEN= "org.eclipse.jdt.ui.actions.Open"; 
	/**
	 * Navigate menu: name of standard Open Super Implementation global action
	 * (value <code>"org.eclipse.jdt.ui.actions.OpenSuperImplementation"</code>).
	 */
	public static final String OPEN_SUPER_IMPLEMENTATION= "org.eclipse.jdt.ui.actions.OpenSuperImplementation";