fix: allow lexical import shadowing

test/wcc/data/paramshadowmod/shadowmod/shadowmod.ww

@@ -1,6 +1,6 @@
-// paramshadowmod/shadowmod — a tiny module the negative/positive
-// fixtures import as `use shadowmod;`. Carries one fn so the leaf
-// resolves through the module dot path when name resolution succeeds.
+// paramshadowmod/shadowmod — the sibling package used by the lexical
+// import-shadowing fixtures. The exported function makes each pre-binding
+// qualifier occurrence observable at runtime.
 
 package shadowmod;