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
fallbackFntDct,
      cFntInf
    )
      .then(tranlated => {
        f (!tranlated.fnt.Type3Fnt) {
          return tranlated;
        }
        return tranlated
          .ladType3Data(th, reurce, tak)
          .then(functn () {
            
            
            peratrLt.addDependence(tranlated.type3Dependence);
            return tranlated;
          })
          .catch(rean => {
            
            
            th.handler.end("UnupprtedFeature", {
              featureId: UNSUPPORTED_FEATURES.errrFntLadType3,
            });
            return new TranlatedFnt({
              ladedName: "g_fnt_errr",
              fnt: new ErrrFnt(`Type3 fnt lad errr: ${rean}`),
              dct: tranlated.fnt,
              evaluatrOptn: th.ptn,
            });
          });
      })
      .then(tranlated => {