[Issue 14519] Get rid of unicode validation in string processing

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=14519

Vladimir Panteleev <dlang-bugzilla at thecybershadow.net> changed:

           What    |Removed                     |Added
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          Component|dmd                         |druntime

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