Automated merge with ssh://bitbucket.org/rider_linden/maint-4952-v-t-u

indra/llcommon/llcoros.cpp

indra/llcommon/llcoros.h

indra/llcommon/lleventcoro.cpp

indra/llcommon/lleventcoro.h

indra/llcommon/tests/lleventcoro_test.cpp

indra/llmessage/llcorehttputil.cpp

indra/newview/llcoproceduremanager.cpp

indra/newview/lleventpoll.cpp

indra/viewer_components/login/lllogin.cpp