https://issues.dlang.org/show_bug.cgi?id=19786

          Issue ID: 19786
           Summary: alias to __traits(getMember) wrongfully always binds
                    to this
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: edi33416@gmail.com

Give the following code example
```
struct S
{
    void foo(const ref S rhs)
    {
        alias thisMember = __traits(getMember, this, "x");
        alias rhsMember = __traits(getMember, rhs, "x");

        pragma(msg, thisMember.stringof);
        pragma(msg, rhsMember.stringof);
        pragma(msg, __traits(getMember, rhs, "x").stringof);
    }

    int x;
}
```

This outputs
```
this.x
this.x
rhs.x
```

As you can see, `rhsMember.stringof` evaluates to `this.x` instead of `rhs.x`

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