qmldom spelling error in tag attribute

When using qmldom with the --dump-ast option, the identifier token of the IdentifierExpression tag is named "identiferToken" instead of "identifierToken".

To reproduce, run `qmldom --dump-ast` on the following file:

import QtQuick 6.3
Item {
    id: item
} 

The result will show, among other output:

<IdentifierExpression name="item" identiferToken="off:34 len:4 l:3 c:9 ">