[Bug testsuite/83791] New: Move tests to libgomp.c-c++-common

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83791

            Bug ID: 83791
           Summary: Move tests to libgomp.c-c++-common
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: trivial
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

The directory libgomp/testsuite/libgomp.c-c++-common was added recently.

There are tests in libgomp/testsuite/libgomp.c that are reused in
libgomp/testsuite/libgomp.c++ using an include, and it makes sense to unify
these two tests by moving themm to libgomp/testsuite/libgomp.c-c++-common.