group threaded testsets to show one report

test/threads_exec.jl

@@ -27,6 +27,8 @@ end
 # (expected test duration is about 18-180 seconds)
 Timer(t -> killjob("KILLING BY THREAD TEST WATCHDOG\n"), 1200)
 
+@testset """threads_exec.jl with JULIA_NUM_THREADS == $(ENV["JULIA_NUM_THREADS"])""" begin
+
 @test Threads.threadid() == 1
 @test 1 <= threadpoolsize() <= Threads.maxthreadid()
 
@@ -232,7 +234,7 @@ end
 # Make sure that eval'ing in a different module doesn't mess up other threads
 orig_curmodule14726 = @__MODULE__
 main_var14726 = 1
-module M14726
+@eval Main module M14726
 module_var14726 = 1
 end
 
@@ -252,7 +254,7 @@ end
     @test @__MODULE__() == orig_curmodule14726
 end
 
-module M14726_2
+@eval Main module M14726_2
 using Test
 using Base.Threads
 @threads for i in 1:100
@@ -1067,3 +1069,5 @@ end
         popfirst!(LOAD_PATH)
     end
 end
+
+end # main testset