Attributes not included in reanalyze locations

[zth]

cc @cristianoc

Example:

1. Create a @react.component that's unused
2. Start the code analyzer
3. Run the new code action for removing the unused code (available in the pre-release extension)
4. Everything but @react.component is removed

[cristianoc]

This happens to be due to an issue in the parser: rescript-lang/rescript#6791

[cristianoc]

Fixed in compiler master.