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
* (value <code>"org.eclipse.jdt.ui.actions.ImplementorsInProject"</code>).
	 */
	public static final String FIND_IMPLEMENTORS_IN_PROJECT= "org.eclipse.jdt.ui.actions.ImplementorsInProject"; 
	/**
	 * Search menu: name of standard Find Implementors in Working Set global action
	 * (value <code>"org.eclipse.jdt.ui.actions.ImplementorsInWorkingSet"</code>).
	 */
	public static final String FIND_IMPLEMENTORS_IN_WORKING_SET= "org.eclipse.jdt.ui.actions.ImplementorsInWorkingSet"; 
	/**
	 * Search menu: name of standard Find Read Access in Workspace global action
	 * (value <code>"org.eclipse.jdt.ui.actions.ReadAccessInWorkspace"</code>).
	 */
	public static final String FIND_READ_ACCESS_IN_WORKSPACE= "org.eclipse.jdt.ui.actions.ReadAccessInWorkspace"; 
	/**
	 * Search menu: name of standard Find Read Access in Project global action
	 * (value <code>"org.eclipse.jdt.ui.actions.ReadAccessInProject"</code>).
	 */
	public static final String FIND_READ_ACCESS_IN_PROJECT= "org.eclipse.jdt.ui.actions.ReadAccessInProject"; 
	/**
	 * Search menu: name of standard Find Read Access in Hierarchy global action
	 * (value <code>"org.eclipse.jdt.ui.actions.ReadAccessInHierarchy"</code>).
	 */
	public static final String FIND_READ_ACCESS_IN_HIERARCHY= "org.eclipse.jdt.ui.actions.ReadAccessInHierarchy"; 
	
	/**
	 * Search menu: name of standard Find Read Access in Working Set global action
	 * (value <code>"org.eclipse.jdt.ui.actions.ReadAccessInWorkingSet"</code>).
	 */
	public static final String FIND_READ_ACCESS_IN_WORKING_SET= "org.eclipse.jdt.ui.actions.ReadAccessInWorkingSet"; 
	/**