Method ascend

demo/src/features/testing.ts:104–109

(depth: number)

      this.didResolve = true

      const ascend = (depth: number) => {
        while (ancestors.length > depth) {
          const finished = ancestors.pop()!
          finished.item.children.replace(finished.children)
        }
      }

      parseMarkdown(content, {
        onTest: (range, a, operator, b, expected) => {