fix safety coercion after call node optimisation

diff --git a/Cython/Compiler/Optimize.py b/Cython/Compiler/Optimize.py
index 80d6609..75f0aff 100644 (file)
--- a/Cython/Compiler/Optimize.py
+++ b/Cython/Compiler/Optimize.py
@@ -1189,7 +1189,8 @@ class SimplifyCalls(Visitor.EnvTransform):
             args=args)
         call_node.analyse_types(self.current_env())
         if node.type != call_node.type:
-            call_node = call_node.coerce_to(node.type)
+            call_node = call_node.coerce_to(
+                node.type, self.current_env())
         return call_node