https://issues.dlang.org/show_bug.cgi?id=22410

          Issue ID: 22410
           Summary: [REG2.094] function with tuple parameter with default
                    argument fails if there's a qualifier
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: boris2.9@gmail.com

test case:
---
alias A(T...) = T;

void fun(const A!(int, string) x = A!(1, "asdf"))
{
}
---

Output:
Error: forward reference to type (const(int), const(string))

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