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
this.projects = projects;
		}
		static String getTitle(IResource[] projects) {
			if (projects.length == 1) {
				return IDEWorkbenchMessages.DeleteResourceAction_titleProject1;
			}
			return IDEWorkbenchMessages.DeleteResourceAction_titleProjectN;
		}
		static String getMessage(IResource[] projects) {
			if (projects.length == 1) {
				IProject project = (IProject) projects[0];
				return NLS
						.bind(
								IDEWorkbenchMessages.DeleteResourceAction_confirmProject1,
								project.getName());
			}
			return NLS.bind(
					IDEWorkbenchMessages.DeleteResourceAction_confirmProjectN,
					new Integer(projects.length));
		}
		/*
		 * (non-Javadoc) Method declared on Window.
		 */
		protected void configureShell(Shell newShell) {
			super.configureShell(newShell);
			PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell,
					IIDEHelpContextIds.DELETE_PROJECT_DIALOG);
		}
		protected Control createCustomArea(Composite parent) {
			Composite composite = new Composite(parent, SWT.NONE);