[Issue 19213] goto skips declaration of variable in std.algorithm.iteration.joiner

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19213

Justin <mrjnewt at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mrjnewt at gmail.com
           Severity|normal                      |regression

--- Comment #3 from Justin <mrjnewt at gmail.com> ---
I ran into this myself when attempting compile a service that we've had in
production for more than a year after updating to DMD 2.083.0.  I was able to
create a small artificial repro case, runnable here:
https://run.dlang.io/is/ssx7CP


import std.algorithm;
import std.range;
void main()
{
    static struct Rec
    {
        int foo;   
    }
    auto results = [[1,2], [3,4]]
                       .map!(q => q.map!Rec.chunkBy!"a.foo")
                       .joiner;
}

This is definitely a regression as this code builds with DMD 2.080.1 and prior.

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