Use sumtree instead of iterator linear search for diff hunks in range

Co-Authored-By: Max Brunsfeld <max@zed.dev>
Co-Authored-By: Mikayla Maki <mikayla@zed.dev>
1c5d15b85eJulia committed on 9/30/2022, 5:32:54 PMparentbce2591
2 files changedLine totals unavailable