I have attached a patch which adds extension processing in WebServiceBindingProcessor
Patch applied, thanks for the fix Rashmi
The WSDLI check was added in r1200809 to fix the compliance fail.
The fail is while processing a composite which uses the wsdli:wsdllocation attribute - http://tools.oasis-open.org/version-control/svn/sca-bindings/TestCases_BWS/BWS_2016/src/main/resources/Test_BWS_2016.composite
So it looks like the code in WebServiceBindingProcessor around line 276 needs to also take account of that spec defined attribute in the http://www.w3.org/ns/wsdl-instance namespace.
It turns out this change breaks the WS binding compliance test BWS_2016.
Patch applied, thanks for the update Rashmi.