[css-overflow-4] Annotate tests

Author: frivoal

css-overflow-4/Overview.bs

@@ -817,15 +817,18 @@ Indicating Block-Axis Overflow: the 'block-ellipsis' property</h3>
 		block-ellipsis-005.html
 		block-ellipsis-006.html
 		block-ellipsis-010.html
-		block-ellipsis-013.tentative.html
-		block-ellipsis-014.tentative.html
+		block-ellipsis-013.html
+		block-ellipsis-014.html
 		block-ellipsis-015.tentative.html
 		block-ellipsis-016.html
-		block-ellipsis-017.tentative.html
+		block-ellipsis-017.html
 		block-ellipsis-018.html
 		block-ellipsis-023.html
 		block-ellipsis-024.html
 		block-ellipsis-025.html
+		block-ellipsis-026.html
+		block-ellipsis-027.html
+		block-ellipsis-028.html
 		block-ellipsis-repaint-003.html
 		block-ellipsis-repaint-004.html
 		block-ellipsis-repaint-001.html