Modules with docstrings don't like interpolation

[Keno]

"""
"""
module Foo

macro foo(x)
    Core.println(x)
end

for fn in (:isdone,)
    @foo $fn
end

end

ERROR: UndefVarError: fn not defined
Stacktrace:
 [1] top-level scope at none:0

[JeffBezanson]

That example by itself seems to work; we think there's more to the story.

[Keno]

Looks like it only fails if you previously tried to

baremodule NotBase; Core.include(NotBase, "sysimg.jl"); end

at some point.