[Issue 20875] New: [REG2.087.1] Enum template specialization ignored

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20875

          Issue ID: 20875
           Summary: [REG2.087.1] Enum template specialization ignored
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: simen.kjaras at gmail.com

enum Foo(alias T : None!U, U...) = true;
enum Bar(alias T : None!U, U...) = false;
static assert( Foo!(int));
static assert(!Bar!(int));

The above code should of course not compile - None is nowhere defined, so
nothing can match, yet it does.

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