[FIX] ManagedObject: document type of oContext in setBindingContext 
[FIX] ManagedObject: document type of oContext in setBindingContext 

Change-Id: Iad2ea7045f49d2d5af0cb50150c46c778bcc3509
BCP: 1670436630
olirogers/openui5,olirogers/openui5,SAP/openui5,SQCLabs/openui5,nzamani/openui5,cschuff/openui5,nzamani/openui5,SQCLabs/openui5,SAP/openui5,cschuff/openui5,cschuff/openui5,SAP/openui5,olirogers/openui5,SAP/openui5,nzamani/openui5,SQCLabs/openui5