Catch some cases were _sqlite3.Connection was misidentified as sqlite3.Connection

test/test_inference/test_gradual/test_conversion.py

@@ -0,0 +1,16 @@
+from os.path import join
+
+from jedi.inference.gradual.conversion import convert_names
+
+
+def test_sqlite3_conversion(Script):
+    script1 = Script('import sqlite3; sqlite3.Connection')
+    d, = script1.goto_definitions()
+
+    assert not d.module_path
+    assert d.full_name == 'sqlite3.Connection'
+    assert convert_names([d._name], only_stubs=True)
+
+    d, = script1.goto_definitions(only_stubs=True)
+    assert d.is_stub()
+    assert d.full_name == 'sqlite3.dbapi2.Connection'