GDC bug? duplicates symbols when using mixin and interface

[Daniel Kozak]

On Thursday, 24 October 2019 at 11:05:21 UTC, Daniel Kozak wrote:
> 
>
> ld: c.o: in function `_DT16_D1b1B8__mixin24getSMFZPv':
> c.d:(.text+0x27): multiple definition of 
> `_DT16_D1b1B8__mixin24getSMFZPv'; b.o:b.d:(.text+0x38): first 
> defined here

BTW. DMD does not includes those _DT16_D1b1B8__mixin24getSMFZPv 
symbols (ddemangle even could not decode them) in obj files and 
ldc does include tham but with small differecies in name and have 
defined them as W (weak reference) not T(text/code) as gdc does