[harmony-demo-1] View_VisualPosition_PartTest and View_VisualPositionTest fixed

[Tharindu Mathew]

https://issues.apache.org/jira/browse/HARMONY-5940

This fixes issues that caused 4 tests in View_VisualPosition_PartTest and 4
tests in View_VisualPositionTest to fail.

Regards,

Tharindu