rounding failures

[garborg]

round(Int, Decimal(3.5)) and round(Decimal(3.5), RoundNearest) are both failing at floatfuncs.jl:136.

It looks like most similar types have customer implementations of least the latter and usually the former.

Traces:

julia> round(Int, Decimal(3.5))
ERROR: MethodError: no method matching round(::Decimal, ::RoundingMode{:Nearest})
Closest candidates are:
  round(::Real, ::RoundingMode; digits, sigdigits, base) at floatfuncs.jl:129
  round(::Float64, ::RoundingMode{:Nearest}) at float.jl:376
  round(::Float32, ::RoundingMode{:Nearest}) at float.jl:377
  ...
Stacktrace:
 [1] #round#566 at ./floatfuncs.jl:134 [inlined]
 [2] round at ./floatfuncs.jl:129 [inlined]
 [3] round(::Type{Int64}, ::Decimal) at ./float.jl:367
 [4] top-level scope at REPL[19]:1
 [5] eval(::Module, ::Any) at ./boot.jl:331
 [6] eval_user_input(::Any, ::REPL.REPLBackend) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.4/REPL/src/REPL.jl:86
 [7] run_backend(::REPL.REPLBackend) at /home/sean/.julia/packages/Revise/C272c/src/Revise.jl:1075
 [8] top-level scope at none:0

julia> round(Decimal(3.5), RoundNearest)
ERROR: MethodError: no method matching round(::Decimal, ::RoundingMode{:Nearest})
Closest candidates are:
  round(::Real, ::RoundingMode; digits, sigdigits, base) at floatfuncs.jl:129
  round(::Float64, ::RoundingMode{:Nearest}) at float.jl:376
  round(::Float32, ::RoundingMode{:Nearest}) at float.jl:377
  ...
Stacktrace:
 [1] #round#566 at ./floatfuncs.jl:134 [inlined]
 [2] round(::Decimal, ::RoundingMode{:Nearest}) at ./floatfuncs.jl:129
 [3] top-level scope at REPL[23]:1
 [4] eval(::Module, ::Any) at ./boot.jl:331
 [5] eval_user_input(::Any, ::REPL.REPLBackend) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.4/REPL/src/REPL.jl:86
 [6] run_backend(::REPL.REPLBackend) at /home/sean/.julia/packages/Revise/C272c/src/Revise.jl:1075
 [7] top-level scope at none:0