Bug 15604 Promote Fill arguments on method completion to a real preference
It is still in work in progress but it has become an established feature by now. Promote the preference to the code assist preference page.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferencesConstants.java
* Enable / Disable to update the packages view selection when editors are switched. Boolean value.
	 */
	public static final String LINK_PACKAGES_TO_EDITOR= JavaBasePreferencePage.LINK_PACKAGES_TO_EDITOR;
	/**
	 * Enable / Disable to update the hierarchy selection when editors are switched. Boolean value.
	 */
	public static final String LINK_TYPEHIERARCHY_TO_EDITOR= JavaBasePreferencePage.LINK_TYPEHIERARCHY_TO_EDITOR;
	/**
	 * Enable / Disable to use folders for source and output when creating a new Java project. Boolean value.
	 */
	public static final String SRCBIN_FOLDERS_IN_NEWPROJ= JavaBasePreferencePage.SRCBIN_FOLDERS_IN_NEWPROJ;
	/**
	 * Source folder name used when creating a new Java project. String value.
	 */
	public static final String SRCBIN_SRCNAME= JavaBasePreferencePage.SRCBIN_SRCNAME;
	/**
	 * Output folder name used when creating a new Java project. String value.
	 */
	public static final String SRCBIN_BINNAME= JavaBasePreferencePage.SRCBIN_BINNAME;
	/**
	 * Selects the behaviour when opening a type in the hierarchy. String value, OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE or OPEN_TYPE_HIERARCHY_IN_VIEW_PART.
	 */
	public static final String OPEN_TYPE_HIERARCHY= JavaBasePreferencePage.OPEN_TYPE_HIERARCHY;
	/**
	 * String value used by OPEN_TYPE_HIERARCHY.
	 */
	public static final String OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE= JavaBasePreferencePage.OPEN_TYPE_HIERARCHY_IN_PERSPECTIVE;
	/**
	 * String value used by OPEN_TYPE_HIERARCHY.
	 */