Testsystem: for now, move the REPL tests to node 1 (#44880)

Author: DilumAluthge

test/runtests.jl

@@ -78,8 +78,11 @@ move_to_node1("Distributed")
 # Ensure things like consuming all kernel pipe memory doesn't interfere with other tests
 move_to_node1("stress")
 # Move `Pkg` tests to node 1 to fix stdin-related woes
+# TODO: fix the Pkg tests so that they can run on any worker
 # X-ref: https://github.com/JuliaLang/julia/pull/44828
 move_to_node1("Pkg")
+# TODO: fix the REPL tests so they can run on any worker
+move_to_node1("REPL")
 
 # In a constrained memory environment, run the "distributed" test after all other tests
 # since it starts a lot of workers and can easily exceed the maximum memory