SA1316 (Tuple element names should use correct casing) is not always triggered for incorrectly cased explicit member names

[bjornhellander]

I created a separate issue for one of the cases mentioned in #3878

In my opinion, this should always trigger SA1316:
var tuple = (x: 1, Y: 2);

The current behavior is that it only triggers when includeInferredTupleElementNames is true.

This analyzer is very clearly implemented to skip all analysis of tuple expressions if includeInferredTupleElementNames is false, so this does not seem to be a mistake, but I don't understand why this is. I suggest the behavior is changed to analyze tuple expressions regardless of the includeInferredTupleElementNames setting.

Tested using version 1.2.0-beta.556.