[Issue 16523] [ICE] Internal error: backend/symbol.c 1031

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16523

--- Comment #8 from github-bugzilla at puremagic.com ---
Commits pushed to master at https://github.com/dlang/dmd

https://github.com/dlang/dmd/commit/cdeca315729264ddbdd72ad9a83ea4fc5762e0dd
fix Issue 16523 - case variables should be const/immutable

- use deprecation instead of warning
- add fail_compilation test

https://github.com/dlang/dmd/commit/8bcd0c1d65af9fd5c0afa7ee0ed7862b286eef1e
Merge pull request #6146 from UplinkCoder/fix_16523

[Partial] Fix Issue 16523

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