[Issue 12663] Wrong error message for mutation of immutable static array

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=12663

--- Comment #2 from github-bugzilla at puremagic.com ---
Commit pushed to master at https://github.com/dlang/dmd

https://github.com/dlang/dmd/commit/ea309c0967e473db3c19e202ffcaf563d9cfff63
Issue 12663, 18594 - Replace lvalue in error messages with 'cannot modify'

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