PROTON-2451: Fix tests that 'know' exactly what frame it is expecting back
PROTON-2451: Fix tests that 'know' exactly what frame it is expecting back

The current version of the generated code is a little different from
the previous code and generates more compact encodings in a few different
places.

apache/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,gemmellr/qpid-proton,apache/qpid-proton,apache/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,apache/qpid-proton,gemmellr/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,astitcher/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,gemmellr/qpid-proton