Bug 273147 [Build] Report build problems as ERROR severity
Currently the BuildManager reports problems with severity of WARNING. Warnings are no longer surfaced in the UI, so we should increase this severity to ERROR.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/GlobalBuildAction.java
boolean verifyBuildersAvailable(IProject[] roots) {
        try {
            for (int i = 0; i < roots.length; i++) {
                if (roots[i].isAccessible()) {
					if (roots[i].getDescription().getBuildSpec().length > 0) {
						return true;
					}
				}
            }
        } catch (CoreException e) {
        	StatusManager.getManager().handle(e, IDEWorkbenchPlugin.IDE_WORKBENCH);
            ErrorDialog
                    .openError(
                            getShell(),
                            IDEWorkbenchMessages.GlobalBuildAction_buildProblems,
                            NLS.bind(IDEWorkbenchMessages.GlobalBuildAction_internalError, e.getMessage()),
                            e.getStatus());
            return false;
        }
        return false;
    }
    /*
     * (non-Javadoc) Method declared on ActionFactory.IWorkbenchAction.
     * 
     * @since 3.0
     */
    public void dispose() {
        if (workbenchWindow == null) {
            
            return;