fix for Xpath.getElementTreeXPath

[benediktask]

I came accross this issue when I reused getElementTreeXPath() functionality in my project

Case:

Incorrect Xpath string returned if element has siblings of same node name when traversing element node tree

Example (how to reproduce):

Using Firebug's "Copy XPath" when right clicking on element in document's element tree.

Let's say we have we have a HTML document with this structure, where X is the element we're trying to get XPath of:

• html
  -- body
  --- div
  ---- div [X]
  ---- div

  XPath returned: /html/body/div/div (should be /html/body/div/div[1])

[janodvarko]

One followup at:
b4adc6f

We have some coding style rules, see:
https://getfirebug.com/wiki/index.php/Firebug_Coding_Style

I have fixed them, in particular:

• curly brackets at the new line
• Variable definitions done separately
• no tabs, only spaces
• max 100 characters on a single line

I did it for you, so you can learn for your next patch ;-)

Thanks!
Honza

[janodvarko]

Automated test at:
3bcebce

Honza