[Issue 20410] ReplaceTypeUnless replaces enums with their basetype

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20410

Paul Backus <snarwin+bugzilla at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |snarwin+bugzilla at gmail.com
          Component|phobos                      |dmd

--- Comment #2 from Paul Backus <snarwin+bugzilla at gmail.com> ---
Looks like a bug in the is expression. The "true" below ought to be "false":

enum Enum : string { foo = "bar" }

pragma(msg, is(Enum == string)); // false
pragma(msg, is(Enum == T[], T)); // true
pragma(msg, T); // immutable(char)

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