Regarding the linked branch, I can't see the point of this change because:
A) Isn't that what you already get in regular right-click menu, sans a few items fenced out by a separator in the regular menu?
B) I've never ever seen anything react to holding down right button meaningfully. That's absolutely the last thing I'd try. Considering (A), I'd expect the proposed feature to go undiscovered by the vast majority of users and considered a bug by most of those who discover it somehow.
Regarding the linked branch, I can't see the point of this change because:
A) Isn't that what you already get in regular right-click menu, sans a few items fenced out by a separator in the regular menu?
B) I've never ever seen anything react to holding down right button meaningfully. That's absolutely the last thing I'd try. Considering (A), I'd expect the proposed feature to go undiscovered by the vast majority of users and considered a bug by most of those who discover it somehow.