Attach (recommended) or Link to PDF file here:
[测试文件.pdf](https://github.com/mozilla/pdf.js/files/7147166/default.pdf)

Configuration:
- Web browser and its version:chrome 92.0.4515.131
- Operating system and its [version:](url) windows
- PDF.js version:v2.9.359
- Is a browser extension:no

Steps to reproduce the problem:
1. use pdf.js to open this pdf file
2. incomplete content display


What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/16495895/132935415-2b52322d-561c-4f60-97df-24e4429743ff.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/16495895/132935425-e5e6605b-71f5-4065-bb89-5c0fdbe1564b.png)

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

describe("nextChar", function () {
      it("should return and set -1 when the end of the stream is reached", function () {
        const input = new StringStream("");
        const lexer = new Lexer(input);
        expect(lexer.nextChar()).toEqual(-1);
        expect(lexer.currentChar).toEqual(-1);
      });
      it("should return and set the character after the current position", function () {
        const input = new StringStream("123");
        const lexer = new Lexer(input);
        expect(lexer.nextChar()).toEqual(0x32); 
        expect(lexer.currentChar).toEqual(0x32); 
      });
    });
    describe("peekChar", function () {
      it("should only return -1 when the end of the stream is reached", function () {
        const input = new StringStream("");
        const lexer = new Lexer(input);
        expect(lexer.peekChar()).toEqual(-1);
        expect(lexer.currentChar).toEqual(-1);
      });
      it("should only return the character after the current position", function () {
        const input = new StringStream("123");
        const lexer = new Lexer(input);
        expect(lexer.peekChar()).toEqual(0x32); 
        expect(lexer.currentChar).toEqual(0x31); 
      });
    });
    describe("getNumber", function () {
      it("should stop parsing numbers at the end of stream", function () {