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/internal/ui/preferences/JavaEditorPreferencePage.java
new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVA_MULTI_LINE_COMMENT + BOLD),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVA_SINGLE_LINE_COMMENT),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVA_SINGLE_LINE_COMMENT + BOLD),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVA_KEYWORD),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVA_KEYWORD + BOLD),
				
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVA_STRING),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVA_STRING + BOLD),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVA_DEFAULT),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVA_DEFAULT + BOLD),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_KEYWORD),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_KEYWORD + BOLD),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_TAG),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_TAG + BOLD),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_LINK),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_LINK + BOLD),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_DEFAULT),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_DEFAULT + BOLD),
				
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, CompilationUnitEditor.MATCHING_BRACKETS_COLOR),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.MATCHING_BRACKETS),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, CompilationUnitEditor.CURRENT_LINE_COLOR),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.CURRENT_LINE),