Move all Name classes to a separate file

test/test_evaluate/test_gradual/test_typeshed.py

@@ -6,7 +6,6 @@ from parso.utils import PythonVersionInfo
 from jedi.evaluate.gradual import typeshed, stub_context
 from jedi.evaluate.context import TreeInstance, BoundMethod, FunctionContext, \
     MethodContext, ClassContext
-from jedi.evaluate.filters import TreeNameDefinition
 
 TYPESHED_PYTHON3 = os.path.join(typeshed.TYPESHED_PATH, 'stdlib', '3')
 

test/test_settings.py

@@ -1,7 +1,7 @@
 import pytest
 
 from jedi import settings
-from jedi.evaluate.filters import ContextName
+from jedi.evaluate.names import ContextName
 from jedi.evaluate.compiled import CompiledContextName
 from jedi.evaluate.gradual.typeshed import StubModuleContext