Drop compat code for IOContext ctor taking pairs from #427

Author: martinholters

README.md

@@ -90,8 +90,6 @@ Currently, the `@compat` macro supports the following syntaxes:
 * `@compat finalizer(func, obj)` with the finalizer to run as the first argument and the object to be finalized
   as the second ([#24605]).
 
-* `IOContext` accepting key-value `Pair`s ([#23271]).
-
 * `get` do-block syntax supported when using `ENV` ([#23412]).
 
 * `Some{T}` wraps `T` to signify that a result of `T<:Void` is expected ([#23642]).

src/Compat.jl

@@ -37,13 +37,6 @@ import Base64
 
 include("compatmacro.jl")
 
-# https://github.com/JuliaLang/julia/pull/23271
-@static if VERSION < v"0.7.0-DEV.1472"
-    Base.IOContext(io::IO, arg1::Pair, arg2::Pair, args::Pair...) = IOContext(IOContext(io, arg1), arg2, args...)
-    # needed for ambiguity resolution
-    Base.IOContext(io::IOContext, arg1::Pair, arg2::Pair) = IOContext(IOContext(io, arg1), arg2)
-end
-
 # 0.7.0-DEV.4527
 @static if !isdefined(Base, :UndefInitializer)
     import Base: Array, Matrix, Vector

test/old.jl

@@ -516,3 +516,7 @@ let a = [1 0 0; 0 1 0; 0 0 1]
     @test Matrix(2I, 3, 3)::Matrix{Int} == Matrix(2I, (3, 3))::Matrix{Int} == 2a
     @test Matrix(2.0I, 3, 3)::Matrix{Float64} == Matrix(2.0I, (3, 3))::Matrix{Float64} == 2a
 end
+
+# 0.7.0-DEV.1472
+@test get(IOContext(IOBuffer(), :arg1=>true, :arg2=>true, :arg3=>true), :arg3, false)
+@test get(IOContext(IOBuffer(), :arg1=>true, :arg2=>true), :arg2, false)

test/runtests.jl

@@ -88,10 +88,6 @@ end
 @test isa(BitVector(undef, 2), BitVector)
 @test isa(BitArray(undef, 2, 2), BitMatrix)
 
-# 0.7.0-DEV.1472
-@test get(IOContext(IOBuffer(), :arg1=>true, :arg2=>true, :arg3=>true), :arg3, false)
-@test get(IOContext(IOBuffer(), :arg1=>true, :arg2=>true), :arg2, false)
-
 # 0.7
 let A = [1]
     local x = 0