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
setToolTipText(IDEWorkbenchMessages.GlobalBuildAction_rebuildToolTip);
            setId("rebuildAll"); 
            workbenchWindow.getWorkbench().getHelpSystem().setHelp(this,
                    IIDEHelpContextIds.GLOBAL_FULL_BUILD_ACTION);
            setActionDefinitionId("org.eclipse.ui.project.rebuildAll"); 
            break;
        default:
            throw new IllegalArgumentException("Invalid build type"); 
        }
        this.buildType = type;
    }
    /**
     * Returns the shell to use.
     */
    private Shell getShell() {
        return workbenchWindow.getShell();
    }
    /**
     * Returns the operation name to use
     */
    private String getOperationMessage() {
        if (buildType == IncrementalProjectBuilder.INCREMENTAL_BUILD)
            return IDEWorkbenchMessages.GlobalBuildAction_buildOperationTitle;
        else
            return IDEWorkbenchMessages.GlobalBuildAction_rebuildAllOperationTitle;
    }
    /**
     * Builds all projects within the workspace. Does not save any open editors.
     */
    public void doBuild() {