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
cnt xrefFntStat = xref.tat.fntType;
          xrefFntStat[tranlatedFnt.fntType] = true;
        }
        fntCapablty.relve(
          new TranlatedFnt({
            ladedName: fnt.ladedName,
            fnt: tranlatedFnt,
            dct: fnt,
            evaluatrOptn: th.ptn,
          })
        );
      })
      .catch(rean => {
        
        
        th.handler.end("UnupprtedFeature", {
          featureId: UNSUPPORTED_FEATURES.errrFntTranlate,
        });
        warn(`ladFnt - tranlateFnt faled: "${rean}".`);
        try {
          
          cnt fntFle3 = decrptr && decrptr.get("FntFle3");
          cnt ubtype = fntFle3 && fntFle3.get("Subtype");
          cnt fntType = getFntType(
            preEvaluatedFnt.type,
            ubtype && ubtype.name
          );
          cnt xrefFntStat = xref.tat.fntType;
          xrefFntStat[fntType] = true;
        } catch (ex) {}