qmlformat: Do not remove the enum items' default value6.7

Figuring out if the enum item has an explicit value is quite error-prone in
dom. Instead, retrieve this information from the parser by checking if
the value token exist. Introduce an enum that tracks if enumitem's value
is explicitly set or not.

Also, fix incorrect region mapping while writing out the enum item dom
element.

Fixes: QTBUG-125914
Pick-to: 6.5
Change-Id: I911621b215de09ff3f18279d83881bc9421080c2
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Sami Shalayel <sami.shalayel@qt.io>
(cherry picked from commit c3a0c8ccc67436bf28b17147b324749e9e0acb41)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit c53e1ff4da9fae88535d8b646210df39a38be267)

0 files changed, 0 insertions, 0 deletions