Attach (recommended) or Link to PDF file here:
https://www.nta.go.jp/taxes/tetsuzuki/shinsei/annai/joyaku/annai/pdf2/250.pdf

Configuration:
- Web browser and its version: Firefox 81.0a1
- Operating system and its version: Debian 5.6.7-1
- PDF.js version: latest in Firefox nightly
- Is a browser extension: No

Steps to reproduce the problem:
1. Open the pdf and paste the following text "本 店 又 は 主 た る 事 務 所 の 所 在 地" in "Full name" and in "Domicile and residence" textfields
2. Print or Save the pdf 

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/91207547-30f05480-e709-11ea-9abd-2af5d970dc46.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/91207663-69902e00-e709-11ea-8a1d-1ddd30cf0621.png)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

return;
                  }
                  stack.length = newStackLength;
                } else if (
                  funcId in ttContext.functionsDefined &&
                  !functionsCalled.includes(funcId)
                ) {
                  callstack.push({ data, i, stackTop: stack.length - 1 });
                  functionsCalled.push(funcId);
                  pc = ttContext.functionsDefined[funcId];
                  if (!pc) {
                    warn("TT: CALL non-existent function");
                    ttContext.hintsValid = false;
                    return;
                  }
                  data = pc.data;
                  i = pc.i;
                }
              }
            }
          } else if (op === 0x2c && !tooComplexToFollowFunctions) {
            
            if (inFDEF || inELSE) {
              warn("TT: nested FDEFs not allowed");
              tooComplexToFollowFunctions = true;
            }
            inFDEF = true;
            
            lastDeff = i;
            funcId = stack.pop();