Changed name of value comparison class

Author: RagnarW

test/tck/tck_util.py

@@ -79,7 +79,7 @@ class Type:
     NULL = "Null"
 
 
-class Value:
+class TestValue:
     content = None
 
     def __init__(self, entity):
@@ -100,7 +100,7 @@ def __hash__(self):
         return hash(repr(self))
 
     def __eq__(self, other):
-        assert isinstance(other, Value)
+        assert isinstance(other, TestValue)
         return self.content == other.content
 
     def __repr__(self):