Attach (recommended) or Link to PDF file here:
[298865.pdf](https://github.com/mozilla/pdf.js/files/2753236/298865.pdf)


Configuration:
- Web browser and its version:chrome 71.0.3578.98
- Operating system and its version:mac os 10.12.6
- PDF.js version:I use online demo in github
- Is a browser extension:no

Steps to reproduce the problem:
1. search "中华" or "电力" or so on,the highlight position is not right

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/10000986/51087378-7eff5100-178d-11e9-991a-005d77b82f31.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/10000986/51087374-6ee77180-178d-11e9-9707-281924f95fd0.png)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):
https://mozilla.github.io/pdf.js/web/viewer.html
const destination = await pdfDoc.getDestination(
        "non-existent-named-destination"
      );
      expect(destination).toEqual(null);
      await loadingTask.destroy();
    });
    it("gets a destination, from out-of-order /Names (NameTree) dictionary (issue 10272)", async function () {
      if (isNodeJS) {
        pending("Linked test-cases are not supported in Node.js.");
      }
      const loadingTask = getDocument(buildGetDocumentParams("issue10272.pdf"));
      const pdfDoc = await loadingTask.promise;
      const destination = await pdfDoc.getDestination("link_1");
      expect(destination).toEqual([
        { num: 17, gen: 0 },
        { name: "XYZ" },
        69,
        125,
        0,
      ]);
      await loadingTask.destroy();
    });
    it("gets non-string destination", async function () {
      let numberPromise = pdfDocument.getDestination(4.3);
      let booleanPromise = pdfDocument.getDestination(true);
      let arrayPromise = pdfDocument.getDestination([
        { num: 17, gen: 0 },
        { name: "XYZ" },
        0,
        841.89,