https://issues.dlang.org/show_bug.cgi?id=20909

          Issue ID: 20909
           Summary: .offsetof fails on forward reference of field
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: boris2.9@gmail.com

Test case:

struct S
{
    pragma(msg, x.sizeof);   // OK
    pragma(msg, x.offsetof); // Error
    int x;
}

Output:

4LU
test.d(4): Error: no property offsetof for type int
test.d(4):        while evaluating pragma(msg, x.offsetof)

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