[Issue 19961] context pointer does not apply qualifiers properly

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19961

--- Comment #2 from Nicholas Wilson <iamthewilsonator at hotmail.com> ---
Bleaugh. That should be 
auto dg2 = delegate int() const { return *p++; };

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