Amends a74cdf778c, after which the
initialization of items in invisible rows is skipped. Since data members
in QFormLayoutItem were lazily initialized, this resulted in out-of-bounds
access of QList entries.
Use member initialization for all QFormLayoutItem fields, and check that
vLayoutIndex is valid before using it to access the list entry. Skip
labels and fields for which it is not initialized.
Add test case. As a drive-by, silence the test's provoked warning
messages via ignoreMessage.
Change-Id: I374b414a51df20b9af3087a2676061fc6b7f23e2
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>