Merging r261080:

------------------------------------------------------------------------
r261080 | abataev | 2016-02-17 02:29:05 -0800 (Wed, 17 Feb 2016) | 3 lines

[OPENMP] Fix handling loop-based directives with arrays.
Patch fixes possible problems with correct handling arrays as
expressions in initialization, conditions etc in loop-based constructs.
------------------------------------------------------------------------

git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_38@261256 91177308-0d34-0410-b5e6-96231b3b80d8