Okay, so that’s a different thing - when navigating to a sub-region, GMEdit searches for the first mention of that name after the parent (in this case, function Test), and adding /// @func name also does make for a mention of the name, so it goes there instead. I’ll need to implement a slightly more complex solution for this.
On a side note, neither GMEdit nor GMS2.3 currently give any meaning to /// @func inside constructors. GMEdit will automatically pick up named arguments from functions static foo = function(a, b) for contextual completion, so sticking to that may suffice.