in the sorted array is used for wxSortedArray (this is why searchFromEnd
parameter doesn't make sense for it).
+{\bf NB:} even for wxObjArray classes, the operator==() of the elements in the
+array is {\bf not} used by this function. It searches exactly the given
+element in the array and so will only succeed if this element had been
+previously added to the array, but fail even if another, identical, element is
+in the array.
+
\membersection{wxArray::Insert}\label{wxarrayinsert}
\func{void}{Insert}{\param{T }{item}, \param{size\_t }{n}}