The native thread implementation in Qt 4.8 did not call
CTrapCleanup::New() which resulted in E32USER-CBASE 69 panics
in applications when they tried to use the cleanup stack in
a thread's run() function. In 4.7 this was working because
OpenC's pthread implementation created a CTrapCleanup automatically.
Now we do it also in the native Symbian thread implementation.
Trask-number: QTBUG-18822
Reviewed-by: Murray Read
(cherry picked from commit 41aa023ef6019ac9745b780c953f48b8bbc42a42)
dfebed5d5b