Migration from ESR 128 to 140

- Update build instructions
- Update bytecode doc generator from upstream
- Regenerate bytecode docs
- Replace output examples in debugging tips with more recent output
- Mention ReportUncatchableException in exceptions doc
- Add migration guide
- Port WeakRef example to ESR 140 (the only example that actually needs
  any code changes)

Author: ptomato

docs/Building SpiderMonkey.md

@@ -5,27 +5,27 @@ Use these instructions to build your own copy of SpiderMonkey.
 ## Prerequisites ##
 
 You will need a **C++ compiler** that can handle the C++17 standard,
-**Rust** version [1.76][minimum-rust-version] or later, **GNU Make**,
+**Rust** version [1.82][minimum-rust-version] or later, **GNU Make**,
 **zlib**, and **libffi**.
 These can usually be installed with a package manager.
 
 > **NOTE** SpiderMonkey also requires ICU of at least version
-> [73.1][minimum-icu-version], but it will build a bundled copy by
+> [76.1][minimum-icu-version], but it will build a bundled copy by
 > default.
 > If you have a new enough copy installed on your system, you can add
 > `--with-system-icu` in the build instructions below, for a shorter
 > build time.
 
-[minimum-rust-version]: https://searchfox.org/mozilla-esr128/rev/2d28d1b9e757a35095de45c818a0432e031f339d/python/mozboot/mozboot/util.py#14
-[minimum-icu-version]: https://searchfox.org/mozilla-esr128/rev/2d28d1b9e757a35095de45c818a0432e031f339d/js/moz.configure#1308
+[minimum-rust-version]: https://searchfox.org/mozilla-esr140/rev/ccf322da35382830f6797111a12c7d28fd8f2258/python/mozboot/mozboot/util.py#16
+[minimum-icu-version]: https://searchfox.org/mozilla-esr140/rev/ccf322da35382830f6797111a12c7d28fd8f2258/js/moz.configure#1196
 
 ## Getting the source code ##
 
 Currently, the most reliable way to get the SpiderMonkey source code is
 to download the Firefox source.
-At the time of writing, the latest source for Firefox ESR 128, which
-contains the source for SpiderMonkey ESR 128, can be found here:
-https://ftp.mozilla.org/pub/firefox/releases/128.1.0esr/source/
+At the time of writing, the latest source for Firefox ESR 140, which
+contains the source for SpiderMonkey ESR 140, can be found here:
+https://ftp.mozilla.org/pub/firefox/releases/140.0esr/source/
 
 The ESR releases have a major release approximately once a year with
 security patches released throughout the year.