AHKv2: First Send in a block is interpreted as an unassigned variable

[mark-wiemer]

Running AHK v2 and noticed that every Send keyword throws a warning:

Not that big deal, but would be nice to remove unwarranted warnings so one could focus on warnings that matters. But I'm not sure if this is VScode or the AHKpp plugin?

Originally posted by @siljuberg in #671