Bug 46764 Change type refactoring: NLS has two keys ChangeTypeRefactoring.invalidSelection with different values
N20031114 Please use the NLS search facility to make sure your NLS stuff is correct. To enable go to Search Dialog -> Customize and check NLS search. Then fill in the NLS search page.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/ChangeTypeAction.java
* Note: This constructor is for internal use only. Clients should not call this constructor.
	 */
	public ChangeTypeAction(CompilationUnitEditor editor) {
		this(editor.getEditorSite());
		fEditor= editor;
		setEnabled(SelectionConverter.getInputAsCompilationUnit(fEditor) != null);
	}
	/**
	 * Creates a new <code>ChangeTypeAction</code>. The action requires
	 * that the selection provided by the site's selection provider is of type <code>
	 * org.eclipse.jface.viewers.IStructuredSelection</code>.
	 * 
	 * @param site the site providing context information for this action
	 */
	public ChangeTypeAction(IWorkbenchSite site) {
		super(site);
		setText(RefactoringMessages.getString("ChangeTypeAction.label")); 
		setToolTipText(RefactoringMessages.getString("ChangeTypeAction.tooltipText")); 
		setDescription(RefactoringMessages.getString("ChangeTypeAction.description")); 
		WorkbenchHelp.setHelp(this, IJavaHelpContextIds.CHANGE_TYPE_ACTION);
	}
	
	/* (non-Javadoc)
	 * Method declared on SelectionDispatchAction
	 */		
	public void run(ITextSelection selection) {
		if (!ActionUtil.isProcessable(getShell(), fEditor))
			return;
		try{
			ChangeTypeRefactoring refactoring= createRefactoring(SelectionConverter.getInputAsCompilationUnit(fEditor), selection);