Fix CodeCompletion of Strongly Typed Enum
Summary: BUG: 375635
Reviewers: nalvarez, KDevelop, kfunk, mwolff
Reviewed By: KDevelop, mwolff
Subscribers: mwolff, kdevelop-devel
Tags: KDevelop
Differential Revision: https://phabricator.kde.org/D10738
(cherry picked from commit 1b0fe932941112f1bccf37713f052fc6028cbb89)