Add new check to typedarray copyWithin (#3108)

We should check if the start index is equal or greater than the end index,
if thats the case, we should return with the original typedArray.

Fixes #3107

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu

jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c

@@ -1891,7 +1891,7 @@ ecma_builtin_typedarray_prototype_copy_within (ecma_value_t this_arg, /**< this
   int32_t offset = (int32_t) (length - target);
   int32_t count = JERRY_MIN (distance, offset);
 
-  if (target >= length || start >= length || end == 0)
+  if (target >= length || end == 0 || start >= end)
   {
     return ecma_copy_value (this_arg);
   }