Function isPlainTemplate

packages/compiler/src/template/pipeline/src/ingest.ts:1301–1303

* Checks whether the given template is a plain ng-template (as opposed to another kind of template * such as a structural directive template or control flow template). This is checked based on the * tagName. We can expect that only plain ng-templates will come through with a tagName of * 'ng-temp

(tmpl: t.Template)

 * | `<ng-template *ngIf>` (structural) | null               |
 */
function isPlainTemplate(tmpl: t.Template) {
  return splitNsName(tmpl.tagName ?? '')[1] === NG_TEMPLATE_TAG_NAME;
}

/**
 * Ensures that the i18nMeta, if provided, is an i18n.Message.