Make gtest_main include gtest shim (#4295)
For consistency with other usage throughout the project and to isolate
some of the shimming we have to do internally due to different include
paths.
diff --git a/iree/testing/gtest_main.cc b/iree/testing/gtest_main.cc
index d665aa8..1e8ff36 100644
--- a/iree/testing/gtest_main.cc
+++ b/iree/testing/gtest_main.cc
@@ -12,8 +12,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-#include "gtest/gtest.h"
#include "iree/base/flags.h"
+#include "iree/testing/gtest.h"
extern "C" int main(int argc, char** argv) {
iree_flags_parse_checked(&argc, &argv);
