[Issue 22871] New: Aliases to `__traits(parameters)` causes unknown error

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22871

          Issue ID: 22871
           Summary: Aliases to `__traits(parameters)` causes unknown error
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: critical
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: moonlightsentinel at disroot.org

E.g. 

int makeAlias(int a, bool b)
{
    alias Params = __traits(parameters);
    assert(Params[0] == 3);
    assert(Params[1] == true);
    return 1;
}

Error: unknown, please file report on issues.dlang.org

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