Bug 180758 [IDE] Deleting a project but not the contents asks if you want to delete read-only files
I have noticed that in 3.3M6, if I delete a project that has read-only files in it, it will prompt if I want to delete the files even if I select "Do not delete contents". The files are not actually deleted, but the error dialog should not be presented to the user since the files are not actually being deleted. I don't remember seeing this in 3.3M4 or earlier.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/DeleteResourceAction.java
}
		} else {
			title = IDEWorkbenchMessages.DeleteResourceAction_titleN;
			if (containsLinkedResource(resources)) {
				msg = NLS
						.bind(
								IDEWorkbenchMessages.DeleteResourceAction_confirmLinkedResourceN,
								new Integer(resources.length));
			} else {
				msg = NLS.bind(
						IDEWorkbenchMessages.DeleteResourceAction_confirmN,
						new Integer(resources.length));
			}
		}
		return MessageDialog.openQuestion(shell, title, msg);
	}
	/**
	 * Asks the user to confirm a delete operation, where the selection contains
	 * only projects. Also remembers whether project content should be deleted.
	 * 
	 * @param resources
	 *            the selected resources
	 * @return <code>true</code> if the user says to go ahead, and
	 *         <code>false</code> if the deletion should be abandoned
	 */
	private boolean confirmDeleteProjects(IResource[] resources) {
		DeleteProjectDialog dialog = new DeleteProjectDialog(shell, resources);
		dialog.setTestingMode(fTestingMode);
		int code = dialog.open();
		deleteContent = dialog.getDeleteContent();