typing: skip error message when dealing with bottom types

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/semantize/typing.nit b/src/semantize/typing.nit
index a6af9ba..b4599d0 100644 (file)
--- a/src/semantize/typing.nit
+++ b/src/semantize/typing.nit
@@ -117,6 +117,7 @@ private class TypeVisitor
                        #node.debug("Unsafe typing: expected {sup}, got {sub}")
                        return sup
                end
+               if sup isa MBottomType then return null # Skip error
                if sub.need_anchor then
                        var u = anchor_to(sub)
                        self.modelbuilder.error(node, "Type Error: expected `{sup}`, got `{sub}: {u}`.")