Also speed up dumping a bit by using 'put' instead of 'putField' when
appropriate.

Cherry-picked from 2.0 branch.

Task-number: QTCREATORBUG-1670
Reviewed-by: ck

Only one level of typedef was stripped, but qulonglong has two.

Task-number: QTCREATORBUG-1737
Reviewed-by: Erik Verbruggen

When reading the xml file describing the Qml types, we incorrectly
classified all functions as methods. They should be slots, since
otherwise qmldump couldn't have dumped them in the first place.

Task-number: QTCREATORBUG-1755
Reviewed-by: Erik Verbruggen

DEPLOYMENT, ICON, TARGET.CAPABILITY, TARGET.EPOCHEAPSIZE and
TARGET.UID3

So that QT_USE_FAST_OPERATOR_PLUS QT_USE_FAST_CONCATENATION
may have an effect.

By actually storing the documents instead of only the root and id
environments.

Reviewed-by: dt

Reviewed-by: dt