Test: basic WAT debugging in js-debug

[connor4312]

Refs: microsoft/vscode-js-debug#1789

• anyOS @chrmarti
• anyOS @luabud

Complexity: 3

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This iteration js-debug learned to debug WebAssembly by automatically disassembling WASM into WAT (the WebAssembly text format). Give it a shot:

0. Install js-debug-nightly
1. Clone https://github.com/torch2424/wasm-by-example and code-insiders wasm-by-example/examples/reading-and-writing-graphics/demo/rust
2. Run npx serve in the terminal
3. Use Debug: Open Link to debug localhost:3000, or wherever serve is serving from
4. Set a breakpoint on L51. Step in.
5. Verify you see the decompiled WebAssembly .
6. Set a breakpoint elsewhere in the WebAssembly (like on L78). See that it is verified, continue and check that it gets hit.
7. Check that the Variables view is populated and the Debug Console works. The variables are pretty low-level, but they should be there.
8. Stop debugging and start debugging again. Verify the breakpoint you set in the WASM before is hit again (restored across sessions.)

[luabud]

Tested with WSL and works as expected :)