Distributed: fix cluster used by JuliaLang/julia#34886 test

The test added in JuliaLang/julia#34886 was using the wrong cluster, resulting in test
failures after the cluster was shutdown at the end of `runtests`. Move
it to the isolation cluster.

Author: vtjnash

test/distributed_exec.jl

@@ -1673,6 +1673,8 @@ let (h, t) = Distributed.head_and_tail(Int[], 0)
     @test collect(t) == []
 end
 
+include("splitrange.jl")
+
 # Run topology tests last after removing all workers, since a given
 # cluster at any time only supports a single topology.
 rmprocs(workers())

test/runtests.jl

@@ -11,5 +11,4 @@ if !success(pipeline(cmd; stdout=stdout, stderr=stderr)) && ccall(:jl_running_on
     error("Distributed test failed, cmd : $cmd")
 end
 
-include("macros.jl")
 include("managers.jl")

test/macros.jl renamed to test/splitrange.jl

@@ -2,7 +2,6 @@ using Test
 using Distributed
 using Distributed: splitrange
 
-# testing function macros.jl:splitrange
 @test splitrange(1, 11, 1) == Array{UnitRange{Int64},1}([1:11])
 @test splitrange(0, 10, 1) == Array{UnitRange{Int64},1}([0:10])
 @test splitrange(-1, 9, 1) == Array{UnitRange{Int64},1}([-1:9])
@@ -26,11 +25,7 @@ const BASE_TEST_PATH = joinpath(Sys.BINDIR, "..", "share", "julia", "test")
 isdefined(Main, :OffsetArrays) || @eval Main include(joinpath($(BASE_TEST_PATH), "testhelpers", "OffsetArrays.jl"))
 using .Main.OffsetArrays
 
-oa=OffsetArray([-1,0], (-2,))
-@distributed for i in eachindex(oa)
-	@test i <= 0
+oa = OffsetArray([123, -345], (-2,))
+@sync @distributed for i in eachindex(oa)
+    @test i ∈ (-1, 0)
 end
-
-# testing macros.jl:...
-# ... yet to be implemented
-