recursive modules are only detected to improve error messages

tests/modules/trecmod.nim

@@ -2,6 +2,7 @@ discard """
   file: "mrecmod.nim"
   line: 1
   errormsg: "recursive module dependency detected"
+  disabled: true
 """
 # recursive module
 import mrecmod

tests/modules/trecmod2.nim

@@ -1,15 +1,13 @@
 discard """
-  file: "mrecmod2.nim"
-  line: 2
-  errormsg: "recursive module dependency detected"
+  output: "4"
 """
 type
   T1* = int  # Module A exports the type ``T1``
 
 import mrecmod2   # the compiler starts parsing B
-
+# the manual says this should work
 proc main() =
-  var i = p(3) # works because B has been parsed completely here
+  echo p(3) # works because B has been parsed completely here
 
 main()
 

tests/modules/tselfimport.nim

@@ -1,7 +1,7 @@
 discard """
   file: "tselfimport.nim"
   line: 7
-  errormsg: "recursive module dependency detected"
+  errormsg: "A module cannot import itself"
 """
 import strutils as su # guard against regression
 import tselfimport #ERROR