support for $this as an array when implementing ArrayAccess
Summary:
Accessing $this as an array if interface ArrayAccess is implemented
bug373414 / bug346876
Reviewers: KDevelop, mwolff, zhigalin, kfunk
Reviewed By: KDevelop, zhigalin, kfunk
Subscribers: kdevelop-devel
Tags: KDevelop
Differential Revision: https://phabricator.kde.org/D4776