D Compiler Bug?

[Bottled Gin]

On Wednesday, 13 February 2019 at 16:16:20 UTC, H. S. Teoh wrote:
> On Wed, Feb 13, 2019 at 12:43:40PM +0000, Bottled Gin via 
> Digitalmars-d wrote: [...]
>> Thanks Teoh, I was able to move forward using "git bisect" 
>> manually.
>> 
>> The commit that breaks these tests is:
>> 
>> commit fb315d03f0744b8406d31b9c106d3a42c0c178b3
>> Author: Walter Bright <walter at walterbright.com>
>> Date:   Thu Mar 23 23:16:12 2017 -0700
>> 
>>     refactor: move towards using semanticRun
>> 
>> From the comment and the commits that follow, it is clear that 
>> this is first in a series of commits, though this commit 
>> itself is not too many lines of code.
>> 
>> I do not understand what is happening in the code here. So 
>> either I need help or someone else needs to take this forward 
>> from here.
> [...]
>
> Now that you have the commit, all you need is a minimal test 
> case that reproduces the problem. Put both in a bug report or 
> add it to an existing bug, if one already exists, and one of 
> the dmd devs should be able to take it from there. (Then post 
> the link to the bug here and complain about it, and one of them 
> should take notice. :-P)
>
>
> T

Thanks for your help Teoh. I already reported 3 bugs earlier on 
this thread. I will be adding another test to issue 19655 soon.

https://issues.dlang.org/show_bug.cgi?id=19655
https://issues.dlang.org/show_bug.cgi?id=19656
https://issues.dlang.org/show_bug.cgi?id=19657