Merging r315586:

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r315586 | abataev | 2017-10-12 08:18:41 -0700 (Thu, 12 Oct 2017) | 5 lines

[OPENMP] Fix PR34926: Fix handling of the array sections passed as
function params.

Codegen could crash if the array section base expression is the
function parameter.
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llvm-svn: 318118