Fix unicode test.

This was broken by the attempt to exclude C++ operations from true division.

Cython/Compiler/ExprNodes.py

@@ -11559,7 +11559,7 @@ class DivNode(NumBinopNode):
                 self.operand2 = self.operand2.coerce_to_simple(env)
 
     def compute_c_result_type(self, type1, type2):
-        if self.operator == '/' and self.ctruedivision and not self.is_cpp_operation():
+        if self.operator == '/' and self.ctruedivision and not type1.is_cpp_class and not type2.is_cpp_class:
             if not type1.is_float and not type2.is_float:
                 widest_type = PyrexTypes.widest_numeric_type(type1, PyrexTypes.c_double_type)
                 widest_type = PyrexTypes.widest_numeric_type(type2, widest_type)