Fix code to follow the "Don’t use else after a return" rule.

Summary:
Fix code to follow the "Don’t use else after a return" rule.
This is a followup from rL219792.

Reviewers: alexfh

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D5826

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@219939 91177308-0d34-0410-b5e6-96231b3b80d8