On Windows, the function name contains the return parameter, so

the test has to be "function name contains the name we used to specify
the breakpoint" not IS the name...

lldb/test/API/functionalities/breakpoint/breakpoint_on_overload/TestBreakOnOverload.py

@@ -18,7 +18,12 @@ class TestBreakpointOnOverload(TestBase):
         self.assertEqual(bkpt.num_locations, 1, "Got one location")
         addr = bkpt.locations[0].GetAddress()
         self.assertTrue(addr.function.IsValid(), "Got a real function")
-        self.assertEqual(addr.function.name, name, "Got the right name")
+        # On Window, the name of the function includes the return value.
+        # We still succeed in setting the breakpoint, but the resultant
+        # name is not the same.
+        # So just look for the name we used for the breakpoint in the
+        # function name, rather than doing an equality check.
+        self.assertIn(name, addr.function.name, "Got the right name")
         
     def test_break_on_overload(self):
         self.build()