SWDEV-353807 - Fixes multiple catch issues (#2912)

- enforcing c++17 for all tests
- Warning as error: ignoring return value

Change-Id: I3d171540403f74222e631d1a8e393386461c9729

catch/unit/texture/hipTextureRef2D.cc

@@ -69,7 +69,7 @@ TEST_CASE("Unit_hipTextureRef2D_Check") {
   dim3 dimGrid(width / dimBlock.x, height / dimBlock.y, 1);
   hipLaunchKernelGGL(tex2DKernel, dim3(dimGrid), dim3(dimBlock), 0, 0,
                      dData, width);
-  hipDeviceSynchronize();
+  HIP_CHECK(hipDeviceSynchronize());
 
   float* hOutputData = reinterpret_cast<float*>(malloc(size));
   REQUIRE(hOutputData != nullptr);