[FIX] core.InvisibleText: Should not invalidate static UIArea.
[FIX] core.InvisibleText: Should not invalidate static UIArea.

BCP: 1580014469

Change-Id: I1ca64ca267592eecb51dfa0503b45c45790d92e2

SAP/openui5,SAP/openui5,SQCLabs/openui5,nzamani/openui5,SQCLabs/openui5,olirogers/openui5,olirogers/openui5,nzamani/openui5,cschuff/openui5,SAP/openui5,olirogers/openui5,SAP/openui5,nzamani/openui5,cschuff/openui5,SQCLabs/openui5,cschuff/openui5