Fix reducedim test

Author: TotalVerb

test/reducedim.jl

@@ -343,5 +343,5 @@ under_test = [UInt8, Int8, Int32, Int64, BigInt]
 @testset "type of sum(::Array{$T}" for T in under_test
     result = sum(T[1 2 3; 4 5 6; 7 8 9], 2)
     @test result == hcat([6, 15, 24])
-    @test eltype(result) === typeof(Base.promote_sys_size(zero(T)))
+    @test eltype(result) === typeof(Base.promote_sys_size_add(zero(T)))
 end