message: Add test for default initialization of int device array
diff: @@ -1711,7 +1711,18 @@ TEST(core_array, checkDefaultInitializationDevice)
  constexpr int MAGIC_INT = 255;
  for(IndexType capacity = 2; capacity < 512; capacity *= 2)
  {
  - // Allocate an explicitly Device array
  + // Allocate an explicitly Device array of ints (zero-initialized)
  + Array<int, 1, axom::MemorySpace::Device> v_int(capacity);
  +
  + // Then copy it to the host
  + Array<int, 1, axom::MemorySpace::Host> v_int_host(v_int);
  +
  + for(const auto ele : v_int_host)
  + {
  + EXPECT_EQ(ele, 0);
  + }
  +
  + // Allocate an explicitly Device array of a default-constructible type
  Array<HasDefault, 1, axom::MemorySpace::Device> v_has_default_device(capacity);
  // Then copy it to the host
  