Fix crash due to not fixing TypeVarExpr.upper_bound. Fixes #1482.

Guido van Rossum · Guido van Rossum · commit 2b33511d1889 · 2016-05-06T17:46:30.000-07:00
diff --git a/mypy/fixup.py b/mypy/fixup.py
@@ -120,6 +120,7 @@ def visit_class_def(self, c: ClassDef) -> None:
     def visit_type_var_expr(self, tv: TypeVarExpr) -> None:
         for value in tv.values:
             value.accept(self.type_fixer)
+        tv.upper_bound.accept(self.type_fixer)
 
     def visit_var(self, v: Var) -> None:
         if self.current_info is not None:
