In IMGUI Debugger window when mode set to 'Clip', 'layout' or 'Unified', On selecting instructions from Inspected view Editor throws NotImplementedException.

Steps to repro:
1. Create a new project
2. Go to Window > Analysis > IMGUI Debugger
3. Inspected view > Select any window (ex.Game)
4. Inspected view > Select Clip Mode
5. Double click on any instructions from the left window

Actual Result:
NotImplementedException error is thrown in the console.

Expected Result:
Instructions should open without any error in the console.

Reproduced in: 2019.3.0a2, 2019.3.15f1, 2020.1.0b11, 2020.2.0a13

Note:
1] IMGUI Debugger implemented in 2019.3.0a2
2] Same behaviour reproducible with Inspected view > Select 'layout' and 'Unified'

Environment:
Occurring on Windows 10 & Mac 10.15.