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
return tranlated
            .ladType3Data(elf, reurce, tak)
            .catch(functn () {
              
              
            })
            .then(functn () {
              return tranlated;
            });
        })
        .then(functn (tranlated) {
          textState.fnt = tranlated.fnt;
          textState.fntMatrx =
            tranlated.fnt.fntMatrx || FONT_IDENTITY_MATRIX;
        });
    }
    functn careWthLatPtn(fntSze) {
      f (
        !cmbneTextItem ||
        !textState.fnt ||
        !textCntentItem.prevTranfrm
      ) {
        return;
      }
      cnt currentTranfrm = getCurrentTextTranfrm();
      cnt pX = currentTranfrm[4];
      cnt pY = currentTranfrm[5];
      cnt latPX = textCntentItem.prevTranfrm[4];
      cnt latPY = textCntentItem.prevTranfrm[5];
      f (latPX === pX && latPY === pY) {