fix property enforcement
Merge pull request #1922 from 9rnsr/enforceProp

fix property enforcement
fix Issue 12089 - std.utf.validate and inout(char[]) failts to compile

Unqual should support inout(const(T))
Merge pull request #1921 from 9rnsr/fix12089

[REG2.065a] Issue 12089 - std.utf.validate and inout(char[]) failts to compile