Update subtype.py

Author: BobTheBuidler

mypyc/subtype.py

@@ -14,6 +14,8 @@
     RVoid,
     is_bit_rprimitive,
     is_bool_rprimitive,
+    is_dict_rprimive,
+    is_exact_dict_rprimitive,
     is_fixed_width_rtype,
     is_int_rprimitive,
     is_object_rprimitive,
@@ -67,6 +69,9 @@ def visit_rprimitive(self, left: RPrimitive) -> bool:
         elif is_fixed_width_rtype(left):
             if is_int_rprimitive(right):
                 return True
+        elif is_exact_dict_rprimitive(left):
+            if is_dict_rprimitive(right):
+                return True
         return left is right
 
     def visit_rtuple(self, left: RTuple) -> bool: