Add a test showing the problem from #25569

---
Signed-off-by: Michael Ferguson <[email protected]>

test/visibility/submodule-in-file/Recursive.chpl

@@ -0,0 +1,13 @@
+// This (and SubModule) were created as a reproducer for issue #25569
+
+module Recursive {
+  config param EXTRA_CHECKS = 42;
+
+  include public module SubModule;
+
+  use this.SubModule;
+
+  writeln("in Recursive, EXTRA_CHECKS=", EXTRA_CHECKS);
+
+  foo();
+}

test/visibility/submodule-in-file/Recursive/SubModule.chpl

@@ -0,0 +1,5 @@
+module SubModule {
+  import super.EXTRA_CHECKS;
+
+  proc foo() { writeln("in SubModule.foo, EXTRA_CHECKS=", EXTRA_CHECKS); }
+}

test/visibility/submodule-in-file/test-Recursive.chpl

@@ -0,0 +1,3 @@
+use Recursive;
+
+proc main() { }

test/visibility/submodule-in-file/test-Recursive.good

@@ -0,0 +1,2 @@
+in Recursive, EXTRA_CHECKS=42
+in SubModule.foo, EXTRA_CHECKS=42