8023630: Implement Java.super() as the preferred way to call super methods
Reviewed-by: jlaskey, lagergren, sundar
basic:"basic" language and library tests. These need run only with File read permission to read files under "test/script" or subdirs and property readpermission to read properties named "nashorn.test.*"error:scripts that should result in compile-time error. The expected files checkfor the error message format etc.currently-failing: Tests that fail currently - but should pass eventually.These are excluded for now.sandbox:Tests to check that sandbox scripts cannot access security sensitive resources.Scripts under this directory run with no special permissions other thanwhat is given to all "sandbox" scripts.trusted:These tests run under AllPermission. Put only those scripts that really needAllPermission - say for eg. creating class loader, full reflective access.