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
gd= new GridData();
		gd.horizontalAlignment= GridData.BEGINNING;
		label.setLayoutData(gd);
		
		fBoldCheckBox= new Button(stylesComposite, SWT.CHECK);
		gd= new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalAlignment= GridData.BEGINNING;
		fBoldCheckBox.setLayoutData(gd);
		
		label= new Label(colorComposite, SWT.LEFT);
		label.setText(JavaUIMessages.getString("JavaEditorPreferencePage.preview")); 
		label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		
		Control previewer= createPreviewer(colorComposite);
		gd= new GridData(GridData.FILL_BOTH);
		gd.widthHint= convertWidthInCharsToPixels(80);
		gd.heightHint= convertHeightInCharsToPixels(15);
		previewer.setLayoutData(gd);
		
		fSyntaxColorList.addSelectionListener(new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {
				
			}
			public void widgetSelected(SelectionEvent e) {
				handleSyntaxColorListSelection();
			}
		});
		
		foregroundColorButton.addSelectionListener(new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {