Fix issue with conditional memory views introduced by more intelligent __eq__.

Cython/Compiler/ExprNodes.py

@@ -10280,7 +10280,7 @@ class CondExprNode(ExprNode):
         if self.true_val.type.is_pyobject or self.false_val.type.is_pyobject:
             self.true_val = self.true_val.coerce_to(self.type, env)
             self.false_val = self.false_val.coerce_to(self.type, env)
-        if self.type == PyrexTypes.error_type:
+        if self.type.is_error:
             self.type_error()
         return self
 

Cython/Compiler/PyrexTypes.py

@@ -555,8 +555,11 @@ class MemoryViewSliceType(PyrexType):
     def __hash__(self):
         return hash(self.__class__) ^ hash(self.dtype) ^ hash(tuple(self.axes))
 
-    def __eq__(self,other):
-        return self.same_as_resolved_type(other)
+    def __eq__(self, other):
+        if isinstance(other, BaseType):
+            return self.same_as_resolved_type(other)
+        else:
+            return False
 
     def same_as_resolved_type(self, other_type):
         return ((other_type.is_memoryviewslice and