[MonoDevelop] Find References is very slow

[Nicholas Frechette]

Hi,
I noticed over the weekend that the Find References... action takes a
long time to complete even for a small solution: ~6 projects, 15k-30k
lines max total.
Searching for a symbol referenced in 2-3 places, takes routinely 20-45
seconds with very high CPU usage. (Pressing Shift-F12 or renaming a
symbol with F2)

Not sure what is going on there but might I suggest a VP-tree type
structure to speed this up? Actually, any spatial partitioning
structure might help.

I'm using 2.8.1 (or 2.8.2, not sure).

Has anyone else noticed the performance?

Nicholas