Unable to preview named import for ts with sourcemap

[liuxingbaoyu]

Describe the bug
When debugging ts files with source maps, named imported variables are not previewed properly.

To Reproduce
Steps to reproduce the behavior:

1. git clone https://github.com/liuxingbaoyu/jsdebug-sourcemap-bug
2. yarn / npm i
3. set breakpoint at src\util\scope.ts L18
4. start debugging Launch Program
5. preview BIND_SCOPE_LEXICAL
6. see error

**VS Code Version: 1.71.0 (user setup)

Additional context

[connor4312]

This is a result of how TS emits its names, not something the debugger controls.

[liuxingbaoyu]

Thanks for the quick reply, I'll look into the source map.

[liuxingbaoyu]

I've re-investigated and this seems to be something the debugger can fix.

As a simple test, I modified https://github.com/microsoft/vscode-js-debug/blob/main/src/common/sourceMaps/renameProvider.ts#L21 to const identifierRe = /[$a -z_][$0-9A-Z_$]*.?[$0-9A-Z_$]*/iy;, it works fine.

[connor4312]

The identifierRe is pretty strict because the sourcemap only gives us where a name starts, not the length of it. But I think including . in that should be fine.