Syntax highlighting is misaligned

VS 11218.70

https://github.com/user-attachments/assets/74ba6deb-e46e-469e-9841-c8982b5c89e5

Code compiles successfully, even most of other language features seem to work correctly.

File which can consistently reproduce the issue (reopen, even VS restart) sent on Discord to @davidwengier.

The report names no repository file, test, or entry point; the consistently reproducing file was sent on Discord to @davidwengier, and the attached image is the available symptom report. Start by obtaining that reproduction and confirming the misalignment in Visual Studio, then trace the relevant Roslyn syntax-highlighting behavior and verify that the corrected highlighting remains compatible with successful compilation and the other working language features.

Written by the indexing model from the issue text.