cmake: Fix `CMAKE_POLICY_*_CMP<N>` regex and add special args to…

Authored by cullmann on Jan 14 2020, 11:17 AM.

Description

cmake: Fix CMAKE_POLICY_*_CMP<N> regex and add special args to get_cmake_property

Reviewers: Framework: Syntax Highlighting, cullmann

Reviewed By: Framework: Syntax Highlighting, cullmann

Subscribers: cullmann, kwrite-devel, kde-frameworks-devel

Tags: Kate, Frameworks

Differential Revision: https://phabricator.kde.org/D25811