Check for errors in process_read_message().
Check for errors in process_read_message().

Report an error and early-exit if a stream message does
not have a stream_id for some reason.

brainwane/zulip,zulip/zulip,rishig/zulip,Galexrt/zulip,hackerkid/zulip,shubhamdhama/zulip,eeshangarg/zulip,jackrzhang/zulip,hackerkid/zulip,Galexrt/zulip,synicalsyntax/zulip,zulip/zulip,jrowan/zulip,Galexrt/zulip,Galexrt/zulip,vaidap/zulip,zulip/zulip,jrowan/zulip,brainwane/zulip,punchagan/zulip,shubhamdhama/zulip,jackrzhang/zulip,hackerkid/zulip,brockwhittaker/zulip,showell/zulip,dhcrzf/zulip,vabs22/zulip,jrowan/zulip,shubhamdhama/zulip,eeshangarg/zulip,andersk/zulip,amanharitsh123/zulip,synicalsyntax/zulip,rht/zulip,brainwane/zulip,mahim97/zulip,jackrzhang/zulip,timabbott/zulip,punchagan/zulip,tommyip/zulip,shubhamdhama/zulip,rht/zulip,rht/zulip,vaidap/zulip,andersk/zulip,eeshangarg/zulip,andersk/zulip,punchagan/zulip,brockwhittaker/zulip,kou/zulip,verma-varsha/zulip,verma-varsha/zulip,hackerkid/zulip,jackrzhang/zulip,andersk/zulip,dhcrzf/zulip,rht/zulip,rht/zulip,mahim97/zulip,jrowan/zulip,showell/zulip,brainwane/zulip,vabs22/zulip,rht/zulip,showell/zulip,kou/zulip,kou/zulip,synicalsyntax/zulip,tommyip/zulip,jrowan/zulip,zulip/zulip,hackerkid/zulip,punchagan/zulip,tommyip/zulip,brockwhittaker/zulip,dhcrzf/zulip,rht/zulip,timabbott/zulip,showell/zulip,zulip/zulip,verma-varsha/zulip,mahim97/zulip,brainwane/zulip,rishig/zulip,vabs22/zulip,brainwane/zulip,punchagan/zulip,mahim97/zulip,eeshangarg/zulip,showell/zulip,punchagan/zulip,dhcrzf/zulip,Galexrt/zulip,tommyip/zulip,hackerkid/zulip,synicalsyntax/zulip,shubhamdhama/zulip,punchagan/zulip,tommyip/zulip,vabs22/zulip,eeshangarg/zulip,mahim97/zulip,dhcrzf/zulip,vaidap/zulip,timabbott/zulip,dhcrzf/zulip,vaidap/zulip,synicalsyntax/zulip,rishig/zulip,tommyip/zulip,showell/zulip,andersk/zulip,zulip/zulip,vabs22/zulip,andersk/zulip,rishig/zulip,rishig/zulip,timabbott/zulip,amanharitsh123/zulip,timabbott/zulip,kou/zulip,brainwane/zulip,jackrzhang/zulip,amanharitsh123/zulip,brockwhittaker/zulip,eeshangarg/zulip,amanharitsh123/zulip,kou/zulip,zulip/zulip,jrowan/zulip,Galexrt/zulip,kou/zulip,jackrzhang/zulip,shubhamdhama/zulip,tommyip/zulip,rishig/zulip,andersk/zulip,kou/zulip,timabbott/zulip,timabbott/zulip,brockwhittaker/zulip,showell/zulip,amanharitsh123/zulip,vaidap/zulip,brockwhittaker/zulip,verma-varsha/zulip,dhcrzf/zulip,mahim97/zulip,shubhamdhama/zulip,verma-varsha/zulip,amanharitsh123/zulip,hackerkid/zulip,vabs22/zulip,verma-varsha/zulip,eeshangarg/zulip,jackrzhang/zulip,Galexrt/zulip,vaidap/zulip,synicalsyntax/zulip,synicalsyntax/zulip,rishig/zulip