fieldtest: canonical-type-names — 5 examples, 9 findings

examples/ct_3b_bad_qualified_known_module.ailx

@@ -0,0 +1,23 @@
+; Fieldtest — canonical-type-names, axis 2 (variant b): BadCrossModuleTypeRef
+; — known module, unknown type. Author qualifies as `std_maybe.Widget`
+; where `std_maybe` IS a workspace module but does not declare a
+; `Widget` type. Per ct.1's load-time validator, this should be
+; rejected with `BadCrossModuleTypeRef`.
+
+(module ct_3b_bad_qualified_known_module
+
+  (import std_maybe)
+
+  (fn passthrough
+    (doc "Identity at std_maybe.Widget — `std_maybe` is real, but `Widget` is not in it.")
+    (type
+      (fn-type
+        (params (con std_maybe.Widget))
+        (ret (con std_maybe.Widget))))
+    (params w)
+    (body w))
+
+  (fn main
+    (type (fn-type (params) (ret (con Unit)) (effects IO)))
+    (params)
+    (body (do io/print_str "unreachable"))))