julia

fff2b9aa - modify methodshow and helper methods to feed a tvar_env into the printing of a method signature

modify methodshow and helper methods to feed a tvar_env into the printing of a method signature for example, this turns: rand{T<:Union{Bool,Int16,Int32,Int64}}(::Type{T<:Union{Bool,Int16,Int32,Int64}}) at random.jl:38 into: rand{T<:Union{Bool,Int16,Int32,Int64}}(::Type{T}) at random.jl:38 and it resolves ambiguous expressions such as: foo{T,N}(::Array{T,N}, ::Vector, ::Array) which used to be printed as: foo{T,N}(::Array{T,N}, ::Array{T,1}, ::Array{T,N}) by printing it instead as: foo{T,N}(::Array{T,N}, ::Array{T<:Any,1}, ::Array{T<:Any,N<:Any})