Catch2 Test Fixes (#2961)

* test fixes

* address PR comment

* PR comment fixing Nvidia pass

* add additional kernel launch checks

* pr comments

catch/unit/multiThread/hipMultiThreadStreams1.cc

@@ -74,6 +74,7 @@ void simpleVectorAdd(size_t numElements, int iters, hipStream_t stream) {
 
         hipLaunchKernelGGL(HipTest::vectorADDReverse, dim3(blocks), dim3(threadsPerBlock), 0, 0,
                         static_cast<const T*>(A_d), static_cast<const T*>(B_d), C_d, numElements);
+        HIP_CHECK(hipGetLastError()); 
 
         MemTraits<C>::Copy(C_h, C_d, Nbytes, hipMemcpyDeviceToHost, stream);