[ESIMD] Allow constructing simd_view from simd

Author: DenisBakhvalov

SYCL/ESIMD/api/simd_view_copy_move_assign.cpp

@@ -114,6 +114,13 @@ int main(void) {
   passed &= test(q, "move assignment operator",
                  [](auto &va_view, auto &vb_view)
                      SYCL_ESIMD_FUNCTION { va_view = std::move(vb_view); });
+  // construct complete view of a vector.
+  passed &= test(q, "constructor from simd",
+                 [](auto &va_view, auto &vb_view) SYCL_ESIMD_FUNCTION {
+                   simd<int, 4> vb = vb_view;
+                   simd_view new_vb_view = vb; // ctor from simd
+                   va_view = new_vb_view;
+                 });
 
   return passed ? 0 : 1;
 }