OpenACC: Fix struct-component-kind-1.c test

OpenACC: Fix struct-component-kind-1.c test

This patch is a minimal fix for the recently-added
struct-component-kind-1.c test (which is currently failing to emit one
of the errors it expects in scan output). This fragment was erroneously
omitted from the second version of the patch posted previously:

  https://gcc.gnu.org/pipermail/gcc-patches/2022-September/602504.html

2022-10-01  Julian Brown  <julian@codesourcery.com>

gcc/
	* gimplify.cc (omp_group_base): Fix IF_PRESENT (no_create)
	handling.