Author: Thomas Broyer <t.broyer@gmail.com>

Ensures UiField(provided=true) provided value takes precedence over initializer from custom element parser, UiConstructor or UiFactory.

Fixes issue 7740

Change-Id: Ie0a6260dce4f12df816af3a2f4e467b46ab62fe2
Review-Link: https://gwt-review.googlesource.com/#/c/1104/


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@11347 8db76d5a-ed1c-0410-87a9-c151d255dfc7