Reproduction steps:
1. Open a new Unity Project
2. Switch to WebGL platform build
3. Change “Player Settings\Settings for WebGL\Publishing Settings\Debug Symbols” to External
4. Build the project
5. Find “.symbols.json” file inside the build folder and open it

Expected result: There are *no* “void JSONWrite” or “JSONRead” functions in the file
Actual result: There are “void JSONWrite” or “JSONRead” functions in the file

Reproducible with: 2021.2.11f1, 2021.3.18f1, 2022.2.6f1, 2023.1.0b3, 2023.2.0a1
Not reproducible with: 2020.3.45f1, 2021.2.0a21
Couldn’t test with versions from 2021.2.0b1 to 2021.2.10f1 (due to compiler errors upon building the project)

Reproducible on: macOS Catalina 10.15.7 (Intel)