Javadoc
This method is recursively called to build the full path name
of a property.
The full path name starts at the root of the graph and consists in:
- the concatenation of each property name from the root
- a unique identification index for each indexed property
For example /Book/Chapter.23a/Paragraph.34c/Comment
The unique identifier is the hexadecimal representation of the
unique integer identifier of the DOM Binding, which is independant
from the position of the property in the array of the indexed prop.
If the array change, the name still represents the same object,
as long as every DOMBinding object of the path exists.