Precompilation causes tuple construction error at REPL

[cstjean]

Here's the MWE. In package Foo:

module Foo

const global m = Val{nothing}()
const global h = Val{:hey}()

wab = [("a", m),
       ("b", h),]

end

At the REPL:

julia> using Foo; [("Plan", Foo.m), ("Plan", Foo.h),]
ERROR: TypeError: in arrayset, expected Tuple{String,Val}, got Tuple{String,Val{nothing}}
Stacktrace:
 [1] setindex! at ./array.jl:769 [inlined]
 [2] copyto!(::Array{Tuple{String,Val},1}, ::Tuple{Tuple{String,Val{nothing}},Tuple{String,Val{:hey}}}) at ./abstractarray.jl:649
 [3] vect(::Tuple{String,Val{nothing}}, ::Vararg{Any,N} where N) at ./array.jl:151
 [4] top-level scope at none:0

On Julia 1.0.1, Linux binary. FWIW, I encountered several segfaults on the way to this MWE.

edit: simplified example.

[ajkeller34]

The MWE's error message should probably read:

ERROR: TypeError: in arrayset, expected Tuple{String,Val}, got Tuple{String,Val{nothing}}
Stacktrace:
 [1] setindex! at ./array.jl:769 [inlined]
 [2] copyto!(::Array{Tuple{String,Val},1}, ::Tuple{Tuple{String,Val{nothing}},Tuple{String,Val{:hey}}}) at ./abstractarray.jl:649
 [3] vect(::Tuple{String,Val{nothing}}, ::Vararg{Any,N} where N) at ./array.jl:151
 [4] top-level scope at none:0

[cstjean]

Fixed, thank you.

[iamed2]

Still happens on 1.1

[iamed2]

Thanks @JeffBezanson!