In Ivy the `DebugNode.attributes` is populated directly from the DOM, but the problem is that the browser will lowercase all attribute names. These changes preserve the case by first going through the `TNode.attrs`, populating the map with the case-sensitive names and saving a reference to the lower case name. Afterwards when we're going through the attributes from the DOM, we can check whether we've mapped the attribute by its case-sensitive name already.
This PR resolves FW-1358.
PR Close#30864
04587a33c5