Display broken for SimpleVector (svec)

[omus]

Trying to display an svec produces the following exception:

julia> Tuple.parameters
Error showing value of type SimpleVector:
ERROR: MethodError: no method matching indices(::SimpleVector, ::Int64)WARNING: Error showing method candidates, aborted

 in display(::Base.REPL.REPLDisplay{Base.REPL.LineEditREPL}, ::MIME{Symbol("text/plain")}, ::SimpleVector) at ./REPL.jl:114
 in display(::Base.REPL.REPLDisplay{Base.REPL.LineEditREPL}, ::SimpleVector) at ./REPL.jl:117
 in display(::SimpleVector) at ./multimedia.jl:143
 in print_response(::Base.Terminals.TTYTerminal, ::Any, ::Void, ::Bool, ::Bool, ::Void) at ./REPL.jl:134
 in print_response(::Base.REPL.LineEditREPL, ::Any, ::Void, ::Bool, ::Bool) at ./REPL.jl:121
 in (::Base.REPL.##18#19{Bool,Base.REPL.##29#38{Base.REPL.LineEditREPL,Base.REPL.REPLHistoryProvider},Base.REPL.LineEditREPL,Base.LineEdit.Prompt})(::Base.LineEdit.MIState, ::Base.AbstractIOBuffer{Array{UInt8,1}}, ::Bool) at ./REPL.jl:631
 in run_interface(::Base.Terminals.TTYTerminal, ::Base.LineEdit.ModalInterface) at ./LineEdit.jl:1570
 in run_frontend(::Base.REPL.LineEditREPL, ::Base.REPL.REPLBackendRef) at ./REPL.jl:882
 in run_repl(::Base.REPL.LineEditREPL, ::Base.##598#599) at ./REPL.jl:167
 in _start() at ./client.jl:364

[JeffBezanson]

Yeah, just noticed this myself. Caused by #16973, which probably should not have been added to 0.5.

[timholy]

which probably should not have been added to 0.5.

To clarify, it was #17137, which was a recommended cleanup from #16260. The other half of #16973 is #17228, which still can be put on hold if you prefer.

Or we can revert #16260 for julia-0.5 if you're really worried about "Arraypocalypse" coming true...