https://pdf.yt/d/BeioWriXAn-DkFcO

When searching the above pdf for the phrase 'acute' the second hit hightlights the nearby word ' especi'.  Almost certainly this is the same issue that I raised in #5667 

However, when examining the generated html you can see that the highlighted text is incorrect - it contains the text ' especi' and not the search term 'acute' - it is not a positioning issue.  (see screenshot).

I am using Chrome 39, windows 8.1 x64 and pdf.js 1.0.1093

![image](https://cloud.githubusercontent.com/assets/10129039/5864096/f2d665a4-a276-11e4-91fa-af6eb36f0cde.png)

beginText(begin);
      } else {
        appendTextToDiv(prevEnd.divIdx, prevEnd.offset, begin.offset);
      }
      if (begin.divIdx === end.divIdx) {
        appendTextToDiv(
          begin.divIdx,
          begin.offset,
          end.offset,
          "highlight" + highlightSuffix
        );
      } else {
        appendTextToDiv(
          begin.divIdx,
          begin.offset,
          infinity.offset,
          "highlight begin" + highlightSuffix
        );
        for (let n0 = begin.divIdx + 1, n1 = end.divIdx; n0 < n1; n0++) {
          textDivs[n0].className = "highlight middle" + highlightSuffix;
        }
        beginText(end, "highlight end" + highlightSuffix);
      }
      prevEnd = end;
    }
    if (prevEnd) {
      appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset);
    }
  }
  _updateMatches() {