[Issue 24263] New: -preview=bitfields: Bit field address escapes through `ref`

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24263

          Issue ID: 24263
           Summary: -preview=bitfields: Bit field address escapes through
                    `ref`
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: ogion.art at gmail.com

struct S {
    ubyte _x:4, _y:4;
    ubyte* p() => &_x;   // Error: cannot take address of bit-field `_x`
    ref ubyte x() => _x; // Compiles
}

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