In the source list, put one file on each line, sort alphabetically
within each of several blocks (preserving the order of those blocks),
add missing entries for which we have rules. Document where QTSRC and
friends come from, eliminate duplication between their entries and
DEPEND_SRC (which pulls them in anyway). Document strays not in OBJS
or QOBJS, fix qmake.pri to add to SOURCES not OBJECTIVE_SOURCES.
Put OBJS and QOBJS entries in the order that matches DEPEND_SRC.
Change-Id: Id38cccd9b1f849a865a265bc0e6ce4c426c42eea
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
8012f38379