Support sympy.UnevaluatedExpr

pymbolic/interop/common.py

@@ -111,6 +111,9 @@ class SympyLikeToPymbolicMapper(SympyLikeMapperBase):
         return prim.CommonSubexpression(
                 self.rec(expr.args[0]), expr.prefix)
 
+    def map_UnevaluatedExpr(self, expr):  # noqa
+        return self.rec(expr.args[0])
+
     def not_supported(self, expr):  # noqa
         if isinstance(expr, int):
             return expr