Bug 85587 [IDE] Save before clean all
The test plan for Platform UI states that a build should prompt to save unsaved resources. However, when we "clean all", no such prompt appears. Should it?
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/GlobalBuildAction.java
ActionFactory.IWorkbenchAction {
    /**
     * The type of build performed by this action. Can be either
     * <code>IncrementalProjectBuilder.INCREMENTAL_BUILD</code> or
     * <code>IncrementalProjectBuilder.FULL_BUILD</code>.
     */
    private int buildType;
    /**
     * The workbench window; or <code>null</code> if this action has been
     * <code>dispose</code>d.
     */
    private IWorkbenchWindow workbenchWindow;
    /**
     * Creates a new action of the appropriate type. The action id is
     * <code>IWorkbenchActionConstants.BUILD</code> for incremental builds and
     * <code>IWorkbenchActionConstants.REBUILD_ALL</code> for full builds.
     * 
     * @param workbench
     *            the active workbench
     * @param shell
     *            the shell for any dialogs