lots of small changes

tests/parallel/tarray_of_channels.nim

@@ -34,5 +34,5 @@ proc main =
   sync()
   for ix in 1..3: channels[ix].close()
 
-when isMainModule:
+when true:
   main()

tests/parallel/tgc_unsafe.nim

@@ -28,5 +28,5 @@ proc main =
   sync()
   for ix in 1..3: channels[ix].close()
 
-when isMainModule:
+when true:
   main()

tests/parallel/tgc_unsafe2.nim

@@ -35,5 +35,5 @@ proc main =
   sync()
   for ix in 1..3: channels[ix].close()
 
-when isMainModule:
+when true:
   main()

tests/parallel/tmissing_deepcopy.nim

@@ -36,6 +36,6 @@ proc update =
     for i in 0 .. people.high:
       spawn people[i].greet()
 
-when isMainModule:
+when true:
   setup()
   update()

tests/parallel/tsimple_array_checks.nim

@@ -59,5 +59,5 @@ proc maino =
 
 maino() # Doesn't work outside a proc
 
-when isMainModule:
+when true:
   main()

tests/parallel/twrong_refcounts.nim

@@ -48,6 +48,6 @@ proc update =
 
 # ---
 
-when isMainModule:
+when true:
   setup()
   update()