fix(checker): handle is_subtype of TypeVar

midas/checker/registry.py

@@ -133,6 +133,16 @@ class TypesRegistry:
             case (_, UnknownType()):
                 return True
 
+            case (TypeVar(bound=bound), _):
+                if bound is None:
+                    return False
+                return self.is_subtype(bound, type2)
+
+            case (_, TypeVar(bound=bound)):
+                if bound is None:
+                    return True
+                return self.is_subtype(type1, bound)
+
             case (AliasType(type=base1), _):
                 return self.is_subtype(base1, type2)
 
@@ -150,11 +160,6 @@ class TypesRegistry:
             case (Function(), Function()):
                 return self.is_func_subtype(type1, type2)
 
-            case (TypeVar(bound=bound), _):
-                if bound is None:
-                    return False
-                return self.is_subtype(bound, type2)
-
             case (ConstraintType(type=base1), _):
                 return self.is_subtype(base1, type2)