July 18, 2018
https://issues.dlang.org/show_bug.cgi?id=19093

          Issue ID: 19093
           Summary: 'cannot alias itself' when using a template
                    instantiation in a template parameter
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: simen.kjaras@gmail.com

alias Foo(T) = T;

struct Test(T, Foo!T t) {}

unittest {
    Test!(int, 3) a;
}

foo.d(2): Error: alias T = T; cannot alias itself, use a qualified name to
create an overload set

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