CTFE in .di files

[Manu]

I've been having some problems like this:
https://issues.dlang.org/show_bug.cgi?id=18774

I have .di files with mixins that generate declarations using CTFE.
Trouble is, executing the CTFE seems to leave residual references to
symbols which result in unresolved link errors in the client of the
.di file.
This seems wrong to me. CTFE shouldn't leave residual dependencies on
runtime symbols... is this a well-known issue? Are there common
workarounds?

I'm surprised I haven't run into this before... I must have just
luckily managed to avoid the specific problem structure.