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
IIDEHelpContextIds.GLOBAL_INCREMENTAL_BUILD_ACTION);
            setImageDescriptor(IDEInternalWorkbenchImages
                    .getImageDescriptor(IDEInternalWorkbenchImages.IMG_ETOOL_BUILD_EXEC));
            setDisabledImageDescriptor(IDEInternalWorkbenchImages
                    .getImageDescriptor(IDEInternalWorkbenchImages.IMG_ETOOL_BUILD_EXEC_DISABLED));
            setActionDefinitionId(IWorkbenchCommandConstants.PROJECT_BUILD_ALL);
            break;
        case IncrementalProjectBuilder.FULL_BUILD:
            setText(IDEWorkbenchMessages.GlobalBuildAction_rebuildText);
            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() {